Can you see how it's constructed well enough to take it apart to move it? Just one thought, and it may be a bad one. I just worry if you try and move it without someone with expertise in the matter.
I wouldn't spend $250 to move the structure whole, since it will take a lot to shore it up. It might be good deal for the space, but do you need that much space?
We have built two barn/sheds in the last three years, an 12x16 and an 8x7. Seems like the 8x7 was less than half of the 12x16 to build, maybe even a third. My husband is saying $500 for the 8x7, and we built it this big in case the neighbors busted us to the sheriff for the chickens, we'd still have a useful structure. We also already had a concrete pad (which we had to remove a half collapsed tin shed from) thus the odd size of 8x7. One major factor in getting a shed up is I'm able to help, and I was squawking myself when we moved those walls.
Reasons the 12x16 cost more: We had to make a foundation of 4" cinderbrick and treated 6x8 timber, we had an overhead/garage door on the front, it had overhead storage and a gambrel roof (so 4x rather than 2x the roof material), and we had an OSB (chip board) underskin with a covering of pre-primed siding (similar to what I see on the outside of this shed.) Also, we put 3/4 in plywood floors because it was for motorcycle parking, though just last night my husband was lamenting we didn't keep chickens in that "shed".
My husband also votes for you to take it apart into wall sections to move.
