The 150 has a waterproof amp so you can mount everything under the hood. With the 100 the amp has to be mounted in the cab somewhere. Pricing will vary, the first link is the manufacturer so any prices you find on there will be higher.
2012 Silver Rubi. AEV 2.5" lift, JCR Dagger front bumper, Superwinch EPI 9, JCR engine skid, ACE side steps, RR 7" HID lights, Wired HDH switch panel
formerly- 2001 Yellow XJ, 7" longarm, lockers, bumper, winch, armor, lights, etc