I miss my ZJ. Had two: a '96 with the 318 V8 and a '97 with the 4.0 I6. Such an underrated platform. I'm looking at picking one up to replace the WJ I bought off my brother.
The only thing to watch out for are the transmissions. It's not a question of if they will go bad, it's just a matter of when, how bad, and how much the repair will be. I'd start setting aside money for a transmission rebuild (if not a spare transmission altogether).
Also, on the V8 ZJ's, you'll want to look into a transfer case swap and driveshaft and axle joint swaps. The full-time viscus transfer case is a weak link as are the CV joints in the drive shaft and axle shafts.
Lastly, the D44A in the rear is an aluminum center section and share no internals with a standard iron D44 housing. So be advised when buying parts you'll have to specify the D44A version not a normal D44 like in an XJ or TJ or the same era.
Beyond that, it's solid platform with a lot of potential.