I dont know a whole lot about what the kit your looking at has in it, but if you want a 3" kit look into the RC 3.25. IMO best bang for your buck. Also, Cam bolts are more hastle than they are worth. You should not have to mess with pinion angles in the 3" lift range. That was my secific reason for going this height.
03 TJ silver, 4.0 5 speed, RC 3.25" lift, JKS 1.25" BL, 1" MML, RC 2.2 Steering stabilizer, 33x12.50 BFG AT T/A KO's, 15x8 MB Razor Wheels
Optional D44 rear
Custom switches in sound pods for when doors are off
JKS Disco's, Infinity's in the pods