i actually will be honest. that 4.0l is bulletproof, and the cherokees are SFA. as long as you take care of it, you should be fine, but even with 2xxk miles, it will be hard to find a cherokee worth as much as your truck, unless said truck is hammered to piss.
But my truck is in pretty good shape. the paint is a little scratched from thick brush but thats about it. and a little rust on the tailgate. and i lost one of my damn AC/Heater knobs