Lift - personally I subscribe to the low center of gravity method. Basically just enough lift to clear the tires with no rubbing a full flex. Currently running 33" tires and a Teraflex leveling kit. Next step will be 35" tires, flat fenders and the same leveling kit.
Navigation - there are better after market options. The factory navigation is expensive and limited!
Crowded elevators smell different to midgets.
I agree with a leveling kit/BB. 4 spacers that sit on top of the stock coils. You want back to stock? just remove them.
Leveling kits typically lift and level the jeep by putting 2" in the front and 1" in the rear.
Extend the rear sway links with new one's. The rear links can be moved to the front. Bumpstop extensions are also included (maybe included) <<---- edit
2007 Rubicon/Rock Krawler triple rate 2.5" coils/RK rear TB w/ a teraflex raised bracket/Rancho 9000 31/32XL shocks/Synergy flipped draglink,ball joints,tie rod /Hankook MT 315-75-16 on Level 8 ZX's/Rancho geo brackets/Ruff stuff uppers/Fox ATS stabilizer/Adams front DS/Artec front armor w/ Currie upper bushings/Rancho cat back exhaust.
$130 from Quadratec, and it'll allow you to clear 33" tires with no rubbing off-road (although you'll need new wheels with 4.5" backspacing or less to clear the new sway bar links that come with the kit).
To get a better understanding of tires/wheels – which cause peeps a lot of problems – read this by thread by our esteemed colleague 4fit: