I'm casually looking for a late-80s e28 535, manual. But the crop is super thin for e28s in general, and manual e28s in particular.

So now I'm thinking, how hard would it be to swap trannies in an e28? This way i can get a car like this:

http://www.cars.com/go/search/deta…

for around $4-5K for a decent one, instead of the $9k or so for the rare manual.