Plus, most of the xj's in this part of the world are pretty crusty on the underside and removing rear leafs could be a pain unless you have a lot of PB blaster, heat, and patience. The 01 I bought a couple years ago with 62k had more rust than the 01 I left behind in IA with 140k.
Fireball motors does excellent work and are very reasonable with what they charge, but are an hour or more from you. I had them replace the springs on mine and they did everything right for $180.