I recently infected my fishing buddy with the kayak acquisition bug, and he bought a new Wildy Radar 135! We took it to his (RV) home with my bed extender(a five foot piece of scrap 2 x 2 steel, with an upright and a crossbar made of water pipe, covered with pool noodles and Sch 20 PVC pipe over that). It worked perfectly. I told him I could make him one, cheap.
He declined, and bought a T-Bone Aluminum bed extender. It's light, well-designed and is very adjustable. Just short of $200. Now, when we go yakking, he takes it off and stores it inside his truck, to avoid being teefed!
My $15 bed extender is ugly enough to never be stolen. No paint, just rust! The T-Bones are nice, just outside my budget.
I'm an Eighth Day Adventist. On the Eighth Day, God went fishing!