that's a good TJ pedigree-wise. 2000 and up 4.0L's are the best of that engine and the Sahara typically comes with lots of goodies.
if it is rust-free and w/o any serious mechanical issues then do not let that mileage keep you totally away, but.....I would not offer more than say 10% below NADA for a TJ with that mileage although if the exterior and interior are in exceptional condition I can see settling on NADA. Good luck.
2002 Wrangler Sahara, all stock, 5-speed, Dana 44, duel tan tops, 2nd owner.
2008 Hemi Grand Cherokee Limited 4X4, Quadradrive II, original owner, 22,000 miles.