Incidentally, S1-Max = 879 ... which makes the factory "2000" a bit of a stretch ;-)

In my GTN pack I have the list of all 11 GTN's and who the supplying dealer was along with chassis numbers etc.

The letter from then factory to each owner lists the car like so:

MORGAN AERO 8 GTN / CUP SPORT REPLICA

the 11 chassis numbers are:

G0273 RHD #1
G0274 RHD #2
G0275 LHD #3
G0276 RHD #4
G0277 LHD #5
G0278 LHD #6
G0284 LHD #7
G0285 LHD #8
G0289 RHD #10
G0291 Unknown #9
G0292 RHD #11

So, definitely 5 RHD and 5 LHD versions. Not sure about #9 as it didn't go via a dealer and wasn't Eric's car.

S1
ex-Matt C - Aero 9 - S1
Wool Die - Aero 25 - S1
Hugo (David) - Aero 29 - S1/Oct 01
Capt Slow - Aero 41 - S1
Vipers Brother - Aero 44 - S1/Nov 01
olleyjp - James - Aero 045/Nov 01
Sloany - Aero 46 - S1/Jan 02
Simonjrw Aero 46 a S1/Dec 01
PhilRS - Aero 51 - S1/Feb 02
Spudgun - Aero 56 - S1
Gin - Aero 57 - S1
Unknown - (ex SpeedMog) - Aero 58 - S1/Dec 01
NickCW (Nick) - Aero 68 - S1/Jan 02
Unknown -(ex Mr_Tony) - Aero 79 - S1
Oldtimer - Aero 80 - S1/2001
Taffmog - Aero 106 - S1/Apr 02
Bill (Orthodoc) - Aero 111 - S1
JBW (James) - Aero 112 /April '02 - S1 BMW Boston Green Metallic/Yarwood Magnolia leather
AJSki2fly(Adrian) - Aero 125 - S1 registered May 02, colour Flag BlueMettalic(Ecurie Eccose), Dark Blue leather (current owner purchase April 2016)
Unknown, but in France - Aero 134 (1st owner Aeroman (Brian)) - S1/June 02 - Colour Audi Green ' Kermit'
Hans Aero 8 - Aero 174 - S1
Philip (Philippo) - Aero 176 - S1/Oct02
Cat B (written off) - Aero 177 (Ex-Cerealsurfer) - S1/Q4 02(?)
t50 (Bill) - Aero 194 - S1/March 03

Aero GTN
Shooter - 0289 GTN #10 Mauritius Blue Pearl over Titan Silver

S2
Wolfgang - Aero 252 - March 04 (development car)
Alistair - Aero 326 - S2/March 05
Harry Flashman (Harry) - Aero 327 - S2/March 05
Aerofrog - Aero 328 - S2/March 05
Brian (Brian W) - Aero 354 - S2
Unknown - (1st owner Aeroman, then Asbojohn, then ex-Michael) - Aero 365 - S2/Sept 05 - Colour Reflex Green
Ray (ray1550) - Aero 381 - S2/Oct 05

S3
51plus4 - Aero 408 - S3/Sept 06
Unknown - Aero 419 (ex-Simon, ex-Ian (Shooter))- S3/October 06 Bentley Silverlake
Yuri - Aero 421 - S3/Jan 07
Kin - Aero 446 - S3/Jan 07
Ex Brian (Aeroman) Now in Germany - Aero 454 - S3/May 07 Colour duo-tone Blue
Unknown - (ex CRT) - Aero 471 - S3
Unknown - (ex Selcouth) - Aero 480 - S3/Oct 07
Hopwood - Aero 488 - S3/Sept 07
Dr. Mosch - Aero 498 - S3/Nov 07
pduf (Pierre) - 509 - Feb 08

S4
Boshly (Andy) - Aero 600 - S4/08
Rbt Aero8 (Robert) - Aero 667 - S4/08
Orthodoc - Aero 681 - S4/August 08
Mogcollector's wife - Susana - Aero 686 - S4/July 08
ianc - Aero 688 - S4/Dec 08
Rudolph (Rudolph) - Aero 690 - S4 July 2008
GreyMog - Aero 703 - S4/Mar 09
Shooter (Ian) - Aero 706 - S4/Jan 09 Matt Black and Yellow
Schnegg (JP) - Aero 725 - S4/April 09
DavidR (David) - Aero 733 - S4 Oct 09
MogCollector (Oliver) - Aero 736 - S4/August 09
David - Aero 744 - S4 Dec '09
Kiwi (Steve) - Aero 757 - S4/Shipped Nov 09, ETA Jan '10 (NZ)
Asbojohn - Aero 760 - S4 November Delivery
Last Aero - Aero 778 - LHD S4 June? Delivery

S5
Asbojohn Aero 038 Delivered July 2016 Asbogreen and black
TheCustomer Aero 080 Delivered April 2017 Porsche '77 Ice Mint Green + wrap
Shooter Aero 010 Black and Cream

AeroMax
MMC Prototype, then Aeroman, ex Mr_Tony (Richard) - Aero chassis No: 0660 - April 08 Colour Liquid Mercury
Unknown - (ex-1560 Steven) - 009 - August 09
Unknown - (ex-Edward)- 010 - August 09
dmat - (David) - 018 - June 09
Dean Royal - 033
Written-Off - 038 - Replacement car #102
Aeromax - 041 - November 08
Aeromax51 (ex -NAC) - 051 - Dispatched from factory Sept. 08
MogCollector (Oliver) - 062 - March 09
Unknown - (es-Simon) - 094 - March 09
API - 095 Sebring Grey Metallic - Burnt Orange Leather
JamesP - 102 (replacement for 038)

Aero SuperSport
Aeroman (Brian), now in Bray - 001 - July '10 colour Rocket Red
Boshly (Andy) - ??? - Sep '10

Aero Coupe
Alistair - 04506 03/2013 Ex Geneva Car - Silver

Edited to add my S4

I’m now chassis 129 series 1.

109
Em

My Aero no 57 is currently at New Elms, after 14 years great motoring, I am replacing it with a new Plus Four, sadly due to personal reasons.

Gin. Nice to see a car that's used, congrats on the new plus 4

Em

My aero no 157 série 1 dark blue /cream leather

S1
ex-Matt C - Aero 9 - S1
Wool Die - Aero 25 - S1
Hugo (David) - Aero 29 - S1/Oct 01
Capt Slow - Aero 41 - S1
Vipers Brother - Aero 44 - S1/Nov 01
olleyjp - James - Aero 045/Nov 01
Sloany - Aero 46 - S1/Jan 02
Simonjrw Aero 46 a S1/Dec 01
PhilRS - Aero 51 - S1/Feb 02
Spudgun - Aero 56 - S1
Gin - Aero 57 - S1
Unknown - (ex SpeedMog) - Aero 58 - S1/Dec 01
NickCW (Nick) - Aero 68 - S1/Jan 02
Unknown -(ex Mr_Tony) - Aero 79 - S1
Oldtimer - Aero 80 - S1/2001
Taffmog - Aero 106 - S1/Apr 02
Bill (Orthodoc) - Aero 111 - S1
JBW (James) - Aero 112 /April '02 - S1 BMW Boston Green Metallic/Yarwood Magnolia leather
AJSki2fly(Adrian) - Aero 125 - S1 registered May 02, colour Flag BlueMettalic(Ecurie Eccose), Dark Blue leather (current owner purchase April 2016)
Unknown, but in France - Aero 134 (1st owner Aeroman (Brian)) - S1/June 02 - Colour Audi Green ' Kermit'
Hans Aero 8 - Aero 174 - S1
Philip (Philippo) - Aero 176 - S1/Oct02
Cat B (written off) - Aero 177 (Ex-Cerealsurfer) - S1/Q4 02(?)
t50 (Bill) - Aero 194 - S1/March 03

Aero GTN
Shooter - 0289 GTN #10 Mauritius Blue Pearl over Titan Silver

S2
Wolfgang - Aero 252 - March 04 (development car)
Alistair - Aero 326 - S2/March 05
Harry Flashman (Harry) - Aero 327 - S2/March 05
Aerofrog - Aero 328 - S2/March 05
Brian (Brian W) - Aero 354 - S2
Unknown - (1st owner Aeroman, then Asbojohn, then ex-Michael) - Aero 365 - S2/Sept 05 - Colour Reflex Green
Ray (ray1550) - Aero 381 - S2/Oct 05

S3
51plus4 - Aero 408 - S3/Sept 06
Unknown - Aero 419 (ex-Simon, ex-Ian (Shooter))- S3/October 06 Bentley Silverlake
Yuri - Aero 421 - S3/Jan 07
Kin - Aero 446 - S3/Jan 07
Ex Brian (Aeroman) Now in Germany - Aero 454 - S3/May 07 Colour duo-tone Blue
Unknown - (ex CRT) - Aero 471 - S3
Unknown - (ex Selcouth) - Aero 480 - S3/Oct 07
Hopwood - Aero 488 - S3/Sept 07
Dr. Mosch - Aero 498 - S3/Nov 07
pduf (Pierre) - 509 - Feb 08

S4
Boshly (Andy) - Aero 600 - S4/08
Rbt Aero8 (Robert) - Aero 667 - S4/08
Orthodoc - Aero 681 - S4/August 08
Mogcollector's wife - Susana - Aero 686 - S4/July 08
ianc - Aero 688 - S4/Dec 08
Rudolph (Rudolph) - Aero 690 - S4 July 2008
GreyMog - Aero 703 - S4/Mar 09
Shooter (Ian) - Aero 706 - S4/Jan 09 Matt Black and Yellow
Schnegg (JP) - Aero 725 - S4/April 09
DavidR (David) - Aero 733 - S4 Oct 09
MogCollector (Oliver) - Aero 736 - S4/August 09
David - Aero 744 - S4 Dec '09
Kiwi (Steve) - Aero 757 - S4/Shipped Nov 09, ETA Jan '10 (NZ)
Asbojohn - Aero 760 - S4 November Delivery
Last Aero - Aero 778 - LHD S4 June? Delivery

S5
Now Unknown - (ex- Shooter) - Aero 010 Delivered May 2016 Black and Cream (Sold, believed to be in Belgium)
Asbojohn Aero 038 Delivered July 2016 Asbogreen and black
TheCustomer Aero 080 Delivered April 2017 Porsche '77 Ice Mint Green + wrap

AeroMax
Now Unknown - MMC Prototype, (ex-Aeroman, then Mr_Tony (Richard)) - Aero chassis No: 0660 - April 08 Colour Liquid Mercury
Now Unknown - (ex-1560 Steven) - 009 - August 09
Now Unknown - (ex-Edward)- 010 - August 09
dmat - (David) - 018 - June 09
Now Unknown - (ex-Dean Royal) - 033
Written-Off - 038 - Replacement car #102
Aeromax - 041 - November 08
Aeromax51 (ex -NAC) - 051 - Dispatched from factory Sept. 08
MogCollector (Oliver) - 062 - March 09
Now Unknown - (ex-Simon) - 094 - March 09 - originally Liquid Mercury (believed to have now been repainted)
API - 095 Sebring Grey Metallic - Burnt Orange Leather
JamesP - 102 (replacement for 038)

Aero SuperSport
Now Unknown - (ex-Aeroman (Brian)) - now in Bray - 001 - July '10 colour Rocket Red
Now Unknown - (ex-Boshly (Andy)) - Sep '10

Aero Coupe
Alistair - 04506 03/2013 Ex Geneva Car - Silver

Assuming last 4 digits is the chassis number mine is 0029 which is on the list as Hugo (David).