Nice truck and welcome to the forum. The Daystar kits will give you a 2.5/1.5 spacer lift and probably the best bet for XREAS as you can do it in the wheel well without removing the CO's..You don't want to break the hydraulic lines loose at the shocks or they will be junk. They do have disconnects at the frame.I had Toytec spacers in front and then eventually replaced XREAS with Icon's suspension on my Limited.
Here is a thread also discussing lifting Limited's.....http://www.toyota-4runner.org/5th-gen-t4rs/90177-lifting-my-limited.html
Good Luck!
Pics of the Daystar spacers ,Notice the screw on bolt extenders so you don't have to take the XREAS coilovers out in the front.