I would go with your first idea and jack it up. You could then dig out and pour some footings just on the 4 corners and the middle of the longest sides. Once you have the pads poured you can run 6x6 beams and have them rest on the concrete pads and lower the shed onto the beams.
I would go with your first idea and jack it up. You could then dig out and pour some footings just on the 4 corners and the middle of the longest sides. Once you have the pads poured you can run 6x6 beams and have them rest on the concrete pads and lower the shed onto the beams.