To actually answer your question. We removed the rear window from our 1998 Keystone Sprinter and replaced it with an Emergency Pass-thru style window. Now we just open the back window,like the rear window on a camper shell, prop it open with a a kayak paddle, and i feed the 2 kayaks, one at a time, through the inside of the camper. My wife grabs them on the inside and lays them side by side on a packing blanket on the floor. We cover them with another packing blanket and stuff a couple throw pillows where we need the so that they don't rub a cabinet, and we're good to go. Our kayaks are only 10 feet long and seem to ride in the floor without any problems. If you have a rear window that is big enough, this might be an option for you.