i have a line on a 390 Cad from a '63 de Ville for free. it needs a rebuild, most likely. there is *something* wrong with the #7 cylinder, but it runs/ran when we pulled it out of the car. so i can get this thing free, would it be a good engine for a Toy? there are TH400s that bolt right behind it. will this thing be a pain to find parts for? thanks guys.