If you get a 2" receiver in the rear, and tow hooks using the proper brackets up front, you should be good to go. 20,000 lbs should be a good strap but I like to go as best I can with my funds, so I'd get the 30,000 or more one. But that's just me. Make sure you get a strap without hooks on it, and use d-rings, or the like for connections.
98 XJ on 32's and 2-3" lift, locked, armored, and ready to rock.