I have owned a few and have one now. They are very easy to convert to 4wd if you find the right 2wd one to buy. From the firewall forward the are the same as the same year of XJ. From there back there are differences. If you can find a '91 or '92 they have the Chrysler injection/ignition. The earlier ones use a Renix system. It isn't bad if you know how to work it.
They are getting harder to find but they are out there.
Starting point: '91 2wd 4.0/auto $400
4wd conversion with 5.5" front lift/SOA rear on 32's at Haspin
