Also i believe 1/2 conduit will fit uder rim of the opening around the cockpit of The kayaks. I have my own designs I eventually want to try but what the heck i don't have the time. The rim of the cockpit on the kayak is the strongest part and both the front tip and back pit of The kayaks are the strongest. Hope this gives you some good options, if you are interested I can send some drawings to help out. Maybe im sticking my nose in where it's not needed you're doing fine I appreciate your video