I believe kit only including motor. here's one on eBay

PARKING BRAKE MOTOR & CABLES 5757PB2 24019280 JAGUAR XK 07 08 09 10 11 12 | eBay

Give Strandberg Auto a call. They're located in WI. I think they have an 08 XK they're parting out. They may have it for less.

 

If you can find it some place other than that pacific-motors eBay dealer, you'll probably get a better price. I've bought several things from them, overpriced and usually not the best quality (but maybe that's the case with parted out wrecks).

 

Well I may have dodged a bullet for now. The EPB was due to the pads being too worn. Got everything back together, bled the system and everything seems to be good. The back brake is working and EPB works as well. If you've ever worked on a car with the EPB off then you know how much it will move. Now with it working again the car barely budges. I'm still going to replace the EPB line. I was also going to replace all of the rotors, pads and caliper so this might just speed that up. I'll keep my fingers crossed from here.

 

Glad it worked out