RR window connector (the pins are not sequential on the connector):
Pin 1 BR Right Rear Power Window Motor Up Control
Pin 2 DB/WT Left Front Door Power Lock/Window Switch Control
Pin 3 YL Left Front Door Power Lock/Window Switch Output
Pin 4 BR/LB Right Rear Power Window Down Control
Pin 5 VT Right Rear Power Window Motor Down Control
Not quite FSM quality, but this diagram is floating around comancheclub for a home made harness. You'll have to adapt it a little for what you want to do.
http://www.comancheclub.com/forums/viewtopic.php?f=2&t=16819
With all the work it would take to make a wiring harness, why not just pull front door switches and wiring from a '91-96 two door XJ and a cross body harness out of a '91 or '92XJ? It would give you flexibility down the road to add power locks and mirrors with minimal parts and work. I've done the swap on my MJ, outside of drilling out the rivets for the window regulator (which you'll have to do anyway), it doesn't take very long because its all plug and play.