Find a ragged out 4WD and do a engine/body swap.
We did it once on a late 70's-early 80's K series Blazer, buddy had a local owned ragged out 4WD, body falling off in chunks, engine burning oil like crazy but frame/transfer/trans were all good.
He found a 2WD forest service K in very good condition and the next thing you know we were tearing them apart.
A couple weeks of working late into the night [and lotsa, lotsa beers] later he had a damn nice K5[?] Blazer
