What are you planning to use for a transmition? The bike tranny is setup for a chain drive (I believe, never looked at a hayabusa) and obviously even a 3rd gen rwd diff won't be. A better choice would probably be the S2000 diff anyway, I doubt you'd find parts and be able to make the old wagon diff strong enough.

Basically, it boils down to why. For what you'd have invested in getting the engine installed and running you could probably afford a much nicer newer car, put a powerful B or H series engine in it and run just as fast (although you would be fwd). A better option would probably be finding a way to mount a B18C1 in the back of the car and make it work. Seeya.