Getting a kayak on top of a truck camper????

Not real easy, but I can get my canoe up there. Mount a roller or bar along the back edge of the camper. Lean the canoe or kayak on the bar, then get on top and pull it up, pivoting it on the bar. Reverse the procedure to get it down. Kind of scary, standing on top and wrestling a canoe, but I haven't found a better way.