New to engine rebuilding

Hey guys, I'm new here and so new to engine rebuilding. Just lookin to get some info on a 440 engine I'm lookin at buyin. I want to rebuild an engine, I've never done it before, but I think I can pull it off. I want to rebuild a Mopar of some kind. Everyone I've talked to says I should start with a small block ford/chev, except for my old man, he's a mopar freak like me. Is the 440 big block a good engine to rebuild for the first timer? The engine I've found is a 1975 440 Magnum, I think it's a Magnum. Anyway I guess all I need to know is how pricey/available the parts are for this block. Thanks.

Kyle!
Author: KyleLR