Opinions Wanted

Saw this beaut of an '84 Ram Charger, guy wants 1,000 bucks for it and it looks like it's a 360 (guessing from the thermoquad), but it is auto and 4x4. Rough as a cob. The floor boards are gone, it's got rust everywhere, although the frame looks to be in good shape, at least what I could see. I thought about offering him 500 and see what he says. What do you guys think?
20201114_125440.jpg