Camaro,
I have a 350 that I bought from a swap meet about a year ago. I paid $200 for it, tore it apart and had it machined. (It's clean as a whistle now). Unfortunately, the main caps needed some work. By the time I would have paid for that, the rest of the maching, and the intial cost of the motor it wasn't worth it. For $125 it'll send you the motor, intake, and heads plus shipping, just looking to get it out of the garage (got a plymouth flathead V6 and soon to have another 350). I recommend getting new pistons, connecting rods, crank and camshaft. It blew a piston, but I still have the connecting rods, crank and camshaft if you want to get the machined as well.