You would have to go with a custom coil, but that isn't the best idea because you throw off a lot of the front and rear end goemetry. the best route is to go to a 6.5" lift, and do some fender trimming. This way you can fit 35s. But any way you go, re-gearing will be needed, and if you are on a budget, then start small... save, and move up from there. WJs are very expensive to build correctly, and it is better to do it right!
Best of luck,
2002 WJ- 2.5" Rusty's lift + KOR .75" spacer. Nitro Shocks. 265/70 Hankook Ats on 16X8 Soft 8s