Re: Question for 2" lift
OK I'll bite since nobody else has.
With the spacers you won't have any issues with the width of the tire. Without them you might have an issue where the tire touches the inner bolt. Depend on the tire size. I run 255/70/17 on the 2" budget lift and don't have any issues with the bolt. I am contemplating going with a larger 265 though.
As for the 18's, I'd personally stick with the 17's. In the past, finding tire sizes for 18's as opposed to 17's proved both more difficult to find and more expensive. I'd prefer the Moab's, but you'll need small spacer to have them clear the calipers on your '07 from what I've read. Kind of defeats the purpose of better wheels for me, since I'd really only get new wheels like that if it meant I didn't have to run spacers. NOT a fan of them, from experience.
2006 4.7L Limited Quadra-Drive II
17" Black Mamba MR1X Wheels on 255/70 Revo 2's
2" Rough Country Lift/Level
K&N Intake -> Ported TB -> Flowmaster 50