I have a 2001 Galant ES V6. The transmission is shot. I also have a 2000 Galant ES I4. The 2000 was in an accident, and the side is messed up, but the engine and transmission are good. How hard would it be to take the 4 cylinder engine and transmission from the 2000 and put it in the 2001? Since I have a parts car, will it be as difficult as everyone says?