Capt. Allen, as far as I know there is no commercially available redrive except for Chevy, maybe. At this point that might be putting the cart before the horse. I believe that you must decide what engine you are going to use, domestic or import. I would look for a late model low mileage wreck and buy the whole car. My current boat runs a complete electronic fuel injected and run fine for ten years.
Redrives are not that hard to build I have done it before. You need to think the whole project through first, do you home work and it should work out O.K., that's what I intend to do when I build my 4 cyl boat. Good luck, ZZ.