Since you live in NC, take a look at Rubitrux in Boone. They have tons of Rubicon take offs up there. That's where I had got my wheels and tires from for pretty cheap
To address your original question... I have the 3" Stage III kit and could not be happier. Nice balance for highway driving and off road. 34" tires and it handles the bumps great, flexes well on the rocks, and is very comfortable going down the highway.
How long have you been running it? Any droop or other issues?
With RK lift kit, the rear track bar bracket is first bolted on. That will be good enough for you to drive to a shop and have it welded. That's what I did when I installed that lift myself in the garage...Other options could be:
-Get a rear adjustable track bar so you won't need that bracket
-Get another brand track bar bracket that is a complete bolt on that comes with an added brace...
I destroyed some bushings during the install. Contacted Icon and they gladly acknowledged the mistake and promptly sent me replacement. Decent customer support and service considering I was frustrated and being less than considerate when I made Initial contact with them concerning this. Lift hardware and shocks appear to be very high quality. Like I said rides sweet.
The raised track bar bracket actually may not center the axle depending on the weight on the Jeep. It is more important to your roll center and keeping the trackbar more level than without it. I suggest just getting a bolt on bracket like the Metal cloak, TF, or Synergy among others if you don't want to be welding things on...