Nice looking vehicle!
The spring lifts (whether Frankenlft, Skyjacker, or Rusty's) will give you a good ride and better flex since the springs aren't preloaded, you'll also get a much better ride quality.

By "bottom out" do you mean that your wheels will run into the wheel wells? If so, yes, your rear tires will run into the wheelwells if you wheel it on some harsher terrain if you do not put bumpstops in.

If you are looking for something that really gets attention, wait untill ALL J's releases their SFA lift in MOAB (if it is ready by then). That will give you a very aggressive looking KJ that can really wheel.

Get the 7-up lift if you just want it for shows and won't be seriously wheeling.

Grab the Frankenlift for a really good ride and good wheeling. Pick up the Skyjacker or Rusty's for a little more economical option.

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Frankenlift
Boulderbars
All J Tranny skid
31x9.5 SS TSLs!
Detroit Truetrac/Powertrax
http://www.cardomain.com/ride/2062875

I believe the Skyjacker is more expensive than the Frankenlift.

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2008 Unlimited Rubicon - 3.5" AEV/Nth lift - 35" MT/R with Kevlar - AEV Wheels - York OBA
2008 Patriot - Fuel Saver