My Spitfire has been in the barn with engine issues since 1984 and the MIEV was written off with some front driver side wheel damage. I drove it around the scrap yard today and can have it for $2500. I could probably sell some MIEV parts if the project bogs down, so no huge financial downside.
The wheelbase widths are within 3/8ths" of each other. The Spitfire is 15" shorter but only two seats so actually more room for gear.. Both run on 13" wheels.
The plan (such as it is) would be to swap in the complete rear axle/motor asembly and delete the entire Spitfire drivetrain. There is more than enough room in the engine bay for the battery. Other components would go in the trunk or engine bay.
As MIEV tech support is very limited (and likely to gt worse) I would do as Jray3 suggests and essentially transfer all wiring and components possible, right down to the ignition key and gear shifter.
The resulting car would weigh about 700 lbs less than a MIEV so maybe better range and acceleration.
Invariably there will be issues and a big part of the decision is figuring out where to find support when those issues arise and the project is 95% complete....which is why I am here
Thanks for the replies...please keep them coming.