as was suggested, find the best un-modified example you can that is rust free (get on your back with a flashlight and inspect the frame and floorpan). TJ's with automatics are not easy to find, so be prepared to accept a 5-speed, that's what happened to me, and I am glad I did, the 5-speed TJ's get better fuel economy and are more fun to drive (unless you sit in heavy traffic a lot). It's fun shopping for TJ's if you take your time and be patient, there are a LOT of crappy TJ's out there so beware.
2002 Wrangler Sahara, all stock, 5-speed, Dana 44, dual tan tops, 2nd owner.
2008 Hemi Grand Cherokee Limited 4X4, Quadradrive II, original owner, 24,000 miles.