If your not wanting to put a lot of money in the whole kit & caboodle consider parting the whole thing out, good chance you will make more than trying to paint it, rebuild the engine etc, a rebuildable core big block by itself is desireable and so is the year of truck, just a thought as I did it on a '70 Chevy PU and made way more than a rebuilt and I let everyone pick there own parts off in a storage unit 25 years ago (If its a auto trans it will be a very desirable th400 also) Good luck