I use an old lawn tractor minus the mowing deck and two soft slings around the mains to pull out of my hangar. When putting it away, I attach one sling to the tail wheel and pull it back into the hangar. Works a treat! Low tech, one person operation. I should also add, I operate off a farm strip with un-even ground and hangar surfaces. I've tried a lot of different methods like tail wheel and "A" frame tow bars, and my experience is that they don't perform well on anything other than nice flat concrete.
Regards,
Andy