33's on a stock Jeep are usually fine, although it can look like there isn't much clearance in the wheels wells. For appearance and tire availability, you should consider 20's if you want a lower profile tire. Something like 305/55R20 would be a big 33, tall and wide for 33's.
If you go with 33's, spend the extra $160 and put a Teraflex leveling kit on it which gets you 2" up front and 1" in the rear and makes 33's look right.
Teraflex Wrangler Leveling Kit 1155200 (07-14 Wrangler JK) - Free Shipping
It's an easy install and rides just like factory.
So now you are up and running for less than $2500 depending on what wheel and tire you choose. Make sure you get 4.5" backspacing on the wheels.