My advice, if you're on a budget and this is (likely) your daily driver: buy another jeep that's already lifted and sell yours. You'll never get out of your jeep what you put into it, and I am seeing (in my area, at least... KC, MO) lifted YJs for between 4-6k. Assuming your jeep is not a pile, you should be able to get about 3500-5k out of it, depending on condition. Sell it, and buy one that's had the parts thrown at it. Let me repeat, this is ONLY if you're truly on a budget and want a bigger jeep.
The thing I can't square is, if you're on a budget, then the bigger you go, the more expensive it becomes to operate and maintain your jeep. I assume you've thought this through.
If selling your jeep is not an option, then as others have said, ditch the pos body lift, get a set of 4" springs, and be prepared to spend the dough on new shocks, new front (and probably rear) brake lines, and a weekend's worth of work putting it all together. You can probably get by with the stock rear driveshaft, if you don't do a lot of off-roading.
Best of luck to you.