pettybilt

Hey guys, a guy I work with is wanting to sell his truck.
Its a 93 4x4,22re 5 speed. It's bone stock with 400k miles on the original engine. The body is in great shape, never been offroad , just the beach for fishing trips.
He's only done regular maintenance, nothing major. So what do you think this is worth?

I've had my share of 22r and re, none with those kind of mile though. I mean how much longer can it last?
I don't want to offend the guy with a offer, I'm thinking $900.

Thanks.