So, the basic plan is this:  Build the C1 on stilts. 

I cut off 9 identical blocks of oak a little taller than my tape feeder on the chopsaw, cleaned them up, and set them aside.

I put my freshly 3D printed bottom triangle together, marked off where the corners ended up on a ~2ft square bit of plywood I had (it's not even flat, yet), and glued down the first three blocks.

Step one complete.  Now I wait.