Well, i have little knowledge in this area, and thats a stretch -

So I am going by the advice of others and Marcus' knowledge seems to be accurate from what I gather.

If I were you I would do a set of Rock Krawler's 1.5" coils if you're wanting to retain the leveling kit. If you decide that want to remove it and just do coils then I woudl go with a 2.5" coil from RK.

With either of these you are likely going to see a need for a front track bar, but everything else should be OK.