Just bought a 2008 Fleetwood Cobalt and need to put a rack on it for a 14' sailboat that weighs 120 pounds, it is too wide to fit beside the AC. Is there an off the shelf solution for a tall roof rack? Is there somewhere I can find info about what is inside the roof as far as structure? I found a set of low profile aluminum pickup ladder racks that will just clear the AC unit (14" legs) that look like they would work. I don't have any reservations about my ability to come up with a leakproof and secure mounting for this rack as long as the roof itself will accept the load (when closed). This is my first camper and hope to learn from others experience/mistakes.