If you can pour the new floor slab up against the old slab you can
simply jack up the wall about 1 - 2 inches and stick a section of water
pipe under the wall. When you have enough rollers in place you (and a
few helpers should be able to roll the structure. As a roller drops
out one end pick it up and run around to the front and put it under the
frame.

A couple of pipes run lengthwise will act as slides to keep the cross
frame from dragging.

I would nail in a few cross braces to keep the walls square when you
disconnect from the slab.