So many quality kits out there for mild builds. Based upon observations of my club members' I'm partial to the AEV 3.5" for a 35" tire. Good trail manners and great on highway. The newish Mopar kits are good, too. The 2" is more a 3". Not as familiar with the 4" but it gets fairly good reviews. I'd add front drop brackets & toss the cam bolts.
'09 JKRU. 4" Teraflex long arm, Teraflex R44 housing, Teraflex / Fox Resis, Poly Performance skids, Nemesis Billy Rockers, Nemesis flares, 37" ATZ P3s on 17" 5x5.5" Trailready HDs, Spyntec hubs, Teraflex BBK, Mopar BBK master/booster, Superior front & Alloy USA rear axle shafts, CTMs, Reids, Synergy drag link & tie rod, WTOR hydro-boosted steering, 5.38s, TF Dual Rate front bar, TF bumpers, Warn Powerplant, Tom Woods shafts, AA xfer case cable, Kilby canister relo, RH4x4 cage.