You need a Truck not a Morgan.

The Plus 8 copes..
You must have a long door. I have a '98 chassis but a short door and much smaller. I fitted a detachable steering wheel. [/quote]
Yes I do Button and 196 lbs so not too bad, not very evenly distributed around the 6' I will admit.. Getting in and out I actually find quite easy it helps a lot to have some stomach muscles, it's technique I think you do damn well getting in and out the short door and hell you are older than me.
Those cobra seats look nice and they seem to make up in any colour you want and the price is not silly. [/quote]
I am a reasonable size 165 lbs and 5'71/2". I just do not think a Cobra seat will fit a +8. Close but a smidge too wide. I am using a Roadster style seat in My +8 Bitsa (1998 Chassis). They have 16" wide seats. I must raise them about 2" in back and 3 1/2" in front above the wooden sill. (I have no upholstery on the sill). Also the windscreen is the North American variety. A bit higher than the UK issue (12"). As I am relatively smaller I can get away with this as well the detachable steering wheel makes it possible. One of the reasons I suggest Allon White seats is they will custom design the seat for Your body size as well keep You comfortable.