Help! 360 with 302 heads no compression

Its a sweet truck i picked up for 300 bucks. 92 d250, 3/4 ton. Needs a ac compressor but its all there, interior is really nice, body is really nice. Jas a goose neck hitch in the back and a regular hitch, and trailer brake. Push bar in the front, front visor and running bars. Also has a deep tranny pan. The guy was going to scrap it cause he couldnt get it running right.