It won't lift both wheels up like a work stand, but how about a double-kickstand or centerstand?
I've seen small motorcycles with those built-on center stands. You pull the bike backwards while kicking the stand down and the rear wheel is suspended off the ground. Plus, it's more stable than the average side kickstand.
Somewhere on these forums are posts from people who built them for their motorized bikes. If this would serve your purpose, then it would be a lot more convenient than always carrying a stand on your bike rack.