This morning I emptied the shed, which took some time despite me previously clearing out most of the crap which only had a *very* minimal chance of ever being useful. I expect I'll need this stuff soon. The fixing plates in the corner were unbloted (that was a typo, but I like it), and a tentative lift in each corner revealed the lightness of a metal shed.
I'd arranged for son to attend at 3pm to assist if things went terribly wrong and I set-to with the trolley jack and an improvised timber beam to support as much of the inside of the roof as possible. A few pumps of the jack and the shed was aloft! No woosie tape measure to find centre and no wucking furries! Gentle tilting of the support's upright enabled me to gradually turn the entire shed in the graceful manner I had predicted. Apart from the odd gust of wind making things interesting occasionally.
If I'd had sufficient clearance on all sides it would have worked a treat but as it was I had to stop after about 20 degrees because of the shed/fence/pear tree interface and wait for son. And carefully hack lumps off the pear tree. When he turned up, at nearly 4 (!), we easily lifted the shed between us and managed to rotate it the other 70 degrees into its new position.
No disasters, no meccano origami, nuffin.
Sorry.
If you want to move a metal shed, go for it!
Si