I would look for an 94ish+ XJ with the 2.5, 5 speed, and 8.25 rear end. This will give you your AX-5 with an external slave, a 231, non- D35 rear end non-disco HP D30, and the 4.10 axle gearing that you're going to want.
This is an ideal situation of course, If you're looking to match the front to the rear and don't want to change the rear (the 5th gear in an AX-5 will be useless on 3.55s with 31s), you can get 3.55 gears from a 2.5/4 speed or 4.0/automatic.