You can get a good 3 inch setup for less than $1k. I got brand new bilstein 5100s all around with brand new ome springs all around and it came out to a little over $700 shipped to my door. Sure that's not very cheap but you get what you paid for. Mine rides fantastic and performs on and off road 10x better than what was on it (just stock). You can get away a little cheaper by keeping your front springs if they aren't too shot and getting the 5100's for the front that have adjustable spring perches to achieve the same lift. Mine has those shocks, but they are on the "stock" height perch because I have 3" lift springs in the front. Hope that helps

Edit: Just checked my invoice and you can save $167 by keeping your stock front springs until you could upgrade or replace them. That would bring the shipped to your door total to just about $600 and trust me its worth it. I got all by stuff from Wheeler's Off Road and it was a quick and easy process.