$5K?? Just exactly where in the Union does this dude live that he thinks he can get 5 Large for a 33 year old truck? If it is Wyoming or Montana or Idaho, maybe but east of the Mississippi? Nuh-huh. North of the Mason-Dixon Line?? 🤣
As for an offer of 3700, the cab and truck box sides had better be absolutely solid, no damage or rust on the frame and the body mounts complete and intact. For that matter the interior should be pristine; no damage or deterioration to the seats, dash, or door panels, and no lights showing on the dash when the key is turned to run.
Most S-10/S-15's of that era ended up as bush buggies and got beaten to death on the back trails; where their rotting hulks probably still remain for the varmints to nest in. About 10 years or so back ago I had a fellow pull up beside me and try to talk me into selling my truck to him. Only thing was what he pulled in with was another S-10 and it had been ridden hard and put away un-serviced so, seeing that I turned him down cold to the point where I almost had to get rude to end his persistence. Like I said, bush buggies.
Nick