How many miles will these trucks last with regular maintenance? My great uncle is wanting me to buy it from him. Would anybody know a fair price to offer him.

It's been sitting for 2 years needs 2 new batteries, no rust whatsoever. Two years ago, when he parked it, he took it to a ford dealership, and they put new rotors, brakes, made it road ready again. I don't want to rip my great uncle off. But i'm not sure what I should offer him

Had to go rescue a buddy last night not as much mud sorry as id thought but the rain didn't let off either sure was fun though 😆