Long doors were not an option - ever!
You will find cars before the '98MY (appeared around Oct '97) with galvanised chassis, it was an option, and on earlier cars where a replacement chassis has been fitted it may have been replaced with a galvanised one. Not sure about option of SS bulkhead, but I don't believe there was.
Ally wings, if you are looking at pre-Superform wings days (I'll need to check, but they were certainly being fitted for MY '98) the wing edge was rolled around a steel wire (for strength etc.) and this can cause galvanic corrosion - easy to spot as the wing edge paint will bubble. Steel wings will rot sooner or later, my 36+ y.o. wings are now quite rough, but still have a few years left... Worth paying attention to, giving a thoroughly good clean and applying protective coating.
With older Morgans it's not the mileage or age that is important, but the condition! To check for wood rot, you really need to be able to lift the carpet over the inner sills (rockers), but the easiest check is to open each door and try lifting it - you will see some play in the door hinges, but you don't want to see any more movement than that play - it means the upright part of the frame is rotten - deduct ££££
Also check the rear inner wheelarches (ply) for rot, and the floor if you can. Unfotunately, there are various areas where rot can hide, which you won't see until starting to strip parts of the body apart.
If you can, take someone with you that knows Morgans (or go to a reputable dealer - plenty in this country!
).
Most of all - Good Luck in your search - the right car will choose you
(An Esprit Turbo ehh? I used to dream of those. It will forever remain a got away, except perhaps for a passenger ride one day!).
Cheers,
