It is worth what someone is willing to spend on it. I think $4500 is a good place to start and you might get more than the $4000 you want. I had a 98 TJ I bought new and it was a great DD, I wish I still had it but I would not have had as much fun with the Kia and there never would have been an upyourkia. There are very few SUVs I would trade the Kia for, a TJ Unlimited is one of them.

Good luck, Dennis

95 Sportage, gone but not forgotten.
98 Jeep TJ, 4" Zone springs with RC Long arms, Ford 8.8", 4.56 gears & Detroit locker rear, D30, 4.56 & Detroit Trutrack front.