Wanted to let everyone know I have redesigned the YakMount to help reduce the price.
They are a really simple way to use Yakima feet and bars on your GFC. Utilizes the Yakima Landing Pad 1. Threaded holes makes for the lowest possible rack height without any drilling into the camper and all the weight is on a rubber pad on the edge of the roof.
They are now $145 for all 4 feet which includes all the mounting hardware. (required yakima parts not included) Check them out here.