Beginning: the "foundation"

Before the day I thought to take pictures: I spent a day clearing some space; I spent a morning at the Home Hardware building supply store in Souris (where I ran into my old friend Darren Mackenzie, who gave me a few pointers and let me use his account and get his discount); I had the guy at the Home Hardware lumber yard laugh at me when I wanted to load 8 4X4s, 8 concrete dekblocks, 22 2X8s and 20 pounds of nails and screws into my subaru; in two trips, the Subaru did the job despite the guy's laughter, and I dug away some more or less flat spots in my clearing and stuck the dekblocks in place.  Voila:

Once the concrete footings were in place, I screwed together a 12X16 frame and propped it more or less level: