My dad has a 12' X 24' wood / steel shed that we have moved countless times. I think he bought it in the early 80's, possibly late 70's. I am certain it has been at least at 4 houses and I think more, and I know it has been at several locations at his current house. (they just got done moving it and patching it up again.)
Anyway,,,, A long long time ago when he first had to move it he bought 4" schedule 40 PVC pipe lengths to use as rollers. I think he has about 8. We empty the building to make it lighter, jack one end until we can get some rollers under it, then start rolling it forward. It will sometimes roll the rollers, and a lot of times it will slide over top the rollers, but it is suprisingly easy to move.
We have used trucks, tractors, and lots of pry bars along the way to make it happen, but it was almost always whatever we had at hand. Last time I moved it with him we did it by hand with levers. I bet we moved more then 100' as well as around a tree, and around a corner behind another building then slid it sideways 10' to put it against the other building.
I think you will find it amazing how easy it moves when on PVC. Just need a couple folks, (3 would be my number) (although I think my 70 year old Dad did it the last time by himself with the tractor) a healthy dose of patience to not rush and hurt something, and an extra 2 or three rollers to lay in your path.