I've been doing some lift research for my '05 V8 Sport with XREAS with 240K, too. I've got experience with 3+ inches of lift on my 3rd gen, but want something mild for the pavement princess.
Wheeler's Off-road has a sale on their front
T1 coils ($144), and rear
T12 coils ($143), ending TODAY. From what I've read from the nice folks on here, should net a nice 1.5-2" on the 4th gens, depending on V6 or V8, and you'll likely still have the stock rake, especially with the V8. This of course depends on which struts you end up going with. I'll probably just end up getting Bilstein 5100s again, from the decent experience with my 3rd gen, the price, and the fronts are adjustable. Ideally, I'd get Old Man Emus, as I've helped put two sets of those in (FJC, and another 3rd gen), and their hardware setup is so much better than Bilstein's.
Here's one of the threads:
Who's running wheeler's T1 and T12 coils?
Uninstalling the XREAS seems simple enough if you've got wrenching experience, but I'm sure it'll be an extra PITA for a 15 year MN truck like mine. It's always worth the blood, sweat, and tears though.
Again, I don't have first-hand experience with this setup yet, but from what I've read, folks seem to like them for a mild 4th gen susy lift, so I'll let other folks chime in.