My mate has built something like 'the dragger' for his Glastar. It lifts the front wheel with a small hydraulic jacket and then two friction drives move it at somewhat less than walking pace.
With the aircraft full of fuel it really takes two people to handle - the little dragger copes well and needs additional traction if something stops the aircraft moving - so there is an element of load limiting built-in.
Having seen this in action I can well understand why people want something similar.