He had a 4" body lift on it?! That's crazy! I can see why you want to take it off. TheGeneral made some good points, and I agree with him about going to the j/y and getting a new transmission linkage, but the t-case shifter linkage will have to be readjusted again. You should be good at this after your last adventure.
To take it off, follow this little check list:
Remove:
Fan shroud
Gas filler hose extension (if applicable)
Steering linkage
Transmission linkage
T-case linkage
Front bumper (unless you have an aftermarket bumper)
All work should be done one side at a time unless you have a two or four post lift. Loosen all of the body mounts, but do not remove any of the bolts yet. When you're ready to lift either the driver's or passenger's side (which ever side you start on first), only remove that side's corresponding bolts.
As you are lowering the body, have a friend pay special attention to the flex coils on the brake lines leading from the master cylinder to the frame. You don't want to kink the lines at the MC. Have your friend "squash" the coil back together, but don't totally flatten it. There should be roughly 1/2-3/4" clearance between each spiral of the lines.
After the body is resting on the factory mounts, secure it loosely with the factory bolts, then proceed to the other side. Bolt everything down tight, adjust everything, hook up the filler hose if you had to disconnect it, then double check all the body mounts to make sure they're tight.
I don't know what to tell you on the steering linkage though. If you question it, a used one from the j/y shouldn't cost more than $25.
You've still got my # if you need me.