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

How tall is your camper? When I had a popup I used a "Boat Loader" extension from Yakima that allowed me to rest one end of a kayak against it and then lift the other end up to the roof by stepping up onto a footstool - the popup roof was only about 8 feet above the ground though. When I switched to a 10 foot tall hardside I found that that method no longer worked. I did find it pretty easy to lean the boat against the front of the camper and then go up on the roof and pull it up, using an old towel between the boat and the camper. The slope of the camper front makes it easier than pulling it up from the rear. After receiving Dr.'s orders to refrain from lifting more than 20 pounds I bought a Yakima Rack and Roll trailer - pricey but it works well - I back down boat ramps and launch and retrieve right from the trailer - no lifting involved. I have a trip coming up next week that will require that I use the roof rack on the camper for my kayak as I will be pulling a different trailer. For that I have come up with a possible alternative method of lifting the boat but as I haven't actually tried it yet I won't describe it here. If it works out well I'll post a report later.