You wont lift yours the same way they lift theirs. Check out
www.jeepforum.com to get some help with CJ lift kits as I have never owned a CJ. They are leaf springs on all four corners and you could either do a Spring Over Axle lift where you mount your spring perches on top of your axle.... this gives you around 5 inches of lift I believe. There are tons of kits out there for CJs. Also try quadratec.com and there are some others I cant think of right now. I have a 95 cherokee with a 6 inch long arm lift kit on it and before that I had a 2001 wrangler with a 4 inch kit on it. Good luck with your jeep