Yep, 302 would be great. Not having the easiest time finding one but I will. I'm very patient- one (or 2) will pop up at some point for a reasonable price. I've looked casually for about 2 years because I have another project that needs some sort of inline engine.

1951 GMC 250 Open Express
1968 C10 Suburban
1971 C20 Pickup

My Dad told me "Son, never hit a man in anger- unless you're certain you can get away with it"