I've actually talked to this guy on the phone -- he said it was originally a half cab with a straight-6, but somebody put the full top on it at some point. He has the half top but it's not in great shape. He's dropped a 302 in it with a 3-speed column shifter. Needs some wiring work and the radiator installed to be drivable, but he says has all the pieces.
Seemed like a nice guy, honest seller.
May make a nice project for someone, but it was more than I wanted to take on -- if anybody goes and sees it in person, let us know!