Congrats, you'll love the lockers!!! Let me know if you need any help with the ARBs, I just set-up and installed a new ARB in the rear axle after my last one grenaded itself internally.
Also, have you checked the waterpump for the source of the coolant leak?
I'm gearing up for Moab and have almost all of my projects finished already... first time ever! Last year I was wrenching on the VX until midnight the night before departure.