Moving an 8x10 wooden shed 100 miles; how? (Video of shed inside)
You didn't say what state you are in. Here in Eastern Pennsylvania there are Amish shedbuilders every mile or two from each other. Check the shed builders in your area, especially the Amish if they live there. That is not to say they are cheaper than other shed movers but fair and reasonable. Otherwise tear the shed apart as suggested and move it in pieces. It is a nice looking shed with a lot of possibilty so no one should fault you for buying it - but! Take things like this into account in the future. I recently built a small 4 x 8 lean-to shed and built it so that it could be easily picked up and moved at any time, even by tipping it onto the side end onto a trailer if needed. I built the 4x4 skids with angled edges (3) right onto the bottom of the flooring so that it could be pushed or towed onto a trailer and used as the foundation supports. I say that you dismantle the shed like others suggested here. Get a friends with a flatbed trailer to move it and pay them for their time and gasoline. Don't spend more than $300-400 moving or just sell it back to the owner and start over. Try an Amish shed-builder they are nearly everywhere. They move sheds.