New to A bodys, could anyone help me with the million questions I have

Welcome! If you're in the SoCal area, I can help with most parts for a '66 Barracuda. I've got 10 of them myself! Some are parts cars, some drivers, some builders. I won't ship large body parts as I've had bad luck with trucking companies but I'll ship UPS size stuff. Most sheet metal is '66 Barracuda and Valiant only but some items from the '64-6 Barracuda will fit also....truck lids, glass, suspension parts, etc. Good luck in your search.
Thanks, Mark