It's too tall for a roll back. I have 16 feet under the power lines . The 4 feet of a roll back puts it right at 16 feet. Too close for that. Plus it's too wide. I think tim is right, take it apart in stages. Probably be able to take it apart and move it in one day
With some 2x4's you could probably make it so you could bolt it back together. Would require some thought but it could be done...IMO, without seeing the shed....