The JK rear shafts are all the same length from 07-11, given 2 door or 4 door remains the same. The only difference there was the Rubi's had a different transfer case and of course the axles. The sway bar disconnect isn't an issue since its just a box mounted to the bar itself. If you need an engine all JK's from 07-11 will work fine.
08 Unlimited Rubicon 6 speed, 315/70-16 Kelly TSR, 1.5" Spidertrax spacers factory Moab's, Rubicon Express Flex arm 3.5" lift, Smittybilt XRC front bumper with D-rings, Body Armor Extreme rock slider steps, AEV snorkel, trimmed fender flares, Hella 8" HID driving lights