yes as chris said its numbers afterall. I don't know which fiero models are the better ones for this type of mod if that makes a difference between the 4cyl and the 6cyl fiero models. what are the common power train swaps, engine, transmission, transaxle, and best wider suspension options and things like newer steering column. After that things like windshield wiper mechanism, larger brakes, options like power steering, abs, ac etc.
I dont know if there is a guide on the forum with this info but seems like where one can start... of course read the other fiero builds too