Well first off decided whether it will be 33s or 35s. If you go to 35s, don't forget about re-gearing and if you are regearing you might as well put a locker in. Also with 35s, you will need a SYE and new rear driveshaft. Then if you have a d35 rear axle you will be replacing that with something stronger. The lift is the easy part.
I am a YJ owner but I have seen my fair share of TJs. To run 33s comfortably you need about 4" of lift and 35s are about 5-6". Now this is just a rule of thumb. JP mag fit 35s on a TJ with a stock suspension, lots of cutting. 33s can be fit on a budget nicely with a 2" BL and 2" budget boost, and new shocks. No gearing necessary but would be helpful.
Do some research, look around, and decide what you really want this for, offroad only or mostly a daily driver. Then it will be easier to ask question. There are lots of great boards in the US like Pirate and Jeeps Unlimited.