Stay away from 2001, its the first year for the 4.2 and they have been issues with these.
I think the 96-2000 are by far the best little suvs EVER. 98-2000 have better lights,a little more power and better ignition.
The autos are about bulletproof,5th gear pops out on 5sp but can be fixed incar.
Around 100,000-150,000mi you will get a puff of smoke at startup, valve guides
but is not a problem.
Use good correct parts and fluids and do NOT do a trans flush just drop pan. Change water pump when doing timing belt.
Repair and upkeep records are real important,about must have. with normal upkeep they go easily 250,000
In these times make sure you see that check engine light comes on when key is turned on,I have seen many that were unhooked to hide troubles.
Expect to pay for a good one but it will be well worth it.
Tell your friend to RAVON!!!