Pulley System

Lets see, the engine and transmission were used, 350 off Craigslist

I did put a cam kit in, about 250
Headers were new, 700, radiator, new, 100, exhaust 250

Mounts were used from fabo, 35 and it was 80 bucks to have rhe drives haft shortened

That leaves about 250 for nuts bolts and fluids...and that gets you a drivetrain that is as good or better then what you would find in roughly any A body that came stock with a 318...and 42 extra cubes
You forgot about the rear end, brakes. That 7 1/4" isn't going to last long behind a V/8. I, myself wouldn't put in a used engine ever again. I did that once and it was a nightmare.