My kayaks are 18' and 16', I just put one hand on each end of the cockpit, it's not a perfect balance but close enough that it's not terribly awkward.
Will be interested in seeing pics of your contraption once you complete it though.
I am another one in the camp of doing a clean and jerk with some 'j' style racks. It's really not bad once you have the movement down. Hullavator is the best option (although very pricey) if you don't want to go this route.
Just picked mine up this past Friday. I ended up going with the SR5 premium, I wanted the upgraded heated seats specifically. It's not real leather, but unless you say otherwise most won't even notice the difference. Not that I am trying to trick anyone though.