GFC crossbars used to mount the RTT to aftermarket roof racks (Sherpa, Prinsu, Westcott, Prospeed, etc). Lightly used in great condition, nothing wrong with them I just decided to go a different direction. Crossbars only, you’ll need to source the tent side hardware yourself.
$150. Located in Orange County, CA.
Here’s a link to the product on the GFC website for more information: