65 Barracuda 318 Rebuild, Cam, timing, lifters maybe a kit?

Would I be better off shopping around for a used set of 318, 340, 360 heads? Buying a new set of aluminum heads is an option, but expensive and ultimately not really worth the cost? I want to do this right. I'm not an experienced engine rebuilder of course, but I'm learning as I go. The help that you and all of the FABO members provide is the only way I can go forward with confidence....I'm really grateful for that. I do have a local mechanic that will come to me and help when I really need it but he is very busy and not readily available. So, I'm kind of on my own here.