Sorry, I didn't check the post before now. I just looked, and there are no more auctions for the cruise kit right now, but here is the email of the people I bought mine from:
lakeshoretruck@lsol.net
It came with the 2 cables (1 for v6, other for I4), the servo, the buttons, a wiring harness, a template, and the instructions to install it. Everyting was brand new and still in plastic. It cost me $30.00 with shipping.
Drop them a line, and maybe they have some left.
Later,
DWH