CUCV2
5/4 ton fun
Looks like a good base to start with for someone looking to do an engine swap. 1985 has the hydraulic clutch.
https://phoenix.craigslist.org/nph/cto/d/gmcton-crew-cab-4x4/6460551153.html
https://phoenix.craigslist.org/nph/cto/d/gmcton-crew-cab-4x4/6460551153.html