Forgot to mention the frames like to rot by the rear spring perches. It's a common enough problem that you can buy a frame cap for them through Quadratec. Also check the mounts for the transfer case/skidplate and up front by the steering box.

I have had 3 2wd Postal Jeeps, one of them had a 350 Chevy in it, in addition to my CJ7. The CJ I had a love/hate relationship with. It was one of the happiest days ever when I sold it, but I also miss them enough that I'm casually looking for another.