put down some sort of cement foundation/footer? Can I just do small
sections at a time and pour cement or buld a cement block wall just a
couple of blocks high. Maybe just a few cement piers? What about
jacking the whole structure up and digging pouring a complete footer?


You need to jack it up so the wood is 6 inches or more above the ground. So
I would jack up half of it a couple of feet in the air, pour a footing and
stem wall, then set it back down and repeat for the second half.