I installed an tested a Currie 4" lift early on and you're determined to get it, the write-up I did for it will help you to install it. You can see it by clicking on this link:
http://project-jk.com/jeep-jk-write...ck-jock-suspension-lift-installation-write-up
As far as the lift itself goes, you really can't go wrong with Currie control arms. They are really well made and come with their Johnny Joints, a setup that is hard to beat. Ride quality is 100% subjective and for me, I wasn't really a fan of their coils. The dual rate coils they use felt a bit firm side for my taste and didn't offer the kind of stuff I would prefer. Also, I really don't like the fact that this kit utilizes a dropped pitman arm as opposed to a drag link flip and while the front track bar relocation bracket does require you weld it on to the front axle, I personally have seen and have installed better setups. Regarding the Antirock, I have found them to be too soft for sudden maneuvers on pavement and way too stiff for off road use and contrary to what the fans choose to believe, I have found them to LIMIT flex and considerably so. Of course, this is to say nothing about how noisy they are. If you choose to get the Currie kit, I personally would save your money and NOT get the Antirocks to go with it. Of course, all this is just my personally opinion and based on my experiences.