i'd grab a 97-98 limited with the V8.
gut your current one. keep the goodies like the 242, diffs, etc. swap over you lift etc. rebuild the tranny from the green one and save it for when the the one in your newer jeep goes.
its a ZJ. its just a matter of time before the tranny goes.
the niner will be a bunch more in fuel as it chugs premium, and the tranny's are very rare, and as stated, garbage.
you don't see many ZJs for sale with blown motors........... its always the tranny.
i guess in short; its a jeep. you're gonna have to dump money into it. might as well make sure its money well spent