Ive been looking at prices. It seems like the rear locker can be had between $700-$900 depending on where you go. Its anybody's guess what the front will cost (not yet released), hopefully in the same ballpark. The ARB compressor ranges from $190-$250 depending on where you go. Oter compressors can be much more expensive and frequently involve the purchase of lots of other parts like one way valves, in-line pressure regulators, pressure activated switches, etc. I just called a reputable shop (drivetrain specialist) and they want $320 per axle for installation of the lockers. I prefer to go to a drivetrain specialist because they have lots of experince working on gears, setting backlash, mesh, etc. wheras a 4x4 shop generally does not have the same specialized experience. I have also found the specialized shops also frequently have better prices. That does not include installing the compressor, wiring harness, etc. Based on the prices I have gotten a rear only ARB locker will cost me around $1220 not including tax and shipping. Front and rear (if the front locker is the same price when released) will be about $2240 plus tax and shipping. I will be doing all of the installing of the compressor, wiring harnesss, etc. myself.