WTB - Roof-Mount Bike Rack

This is a long short, but I am picking up a Subaru Outback very soon, and it has a solid factory roof rack.

I am looking for a roof mount bike rack so I can transport my bike without getting the interior dirty as hell all the time.

I am looking for something that would attach directly to the factory rack, so that rules out Thule and Yakima racks.

I like the Rocky Mount racks, just wondering if someone maybe had a used one just laying around that they’d sell so I could save money over a new one.