It feels great to have completed the dome structure. My next order of business will be fitting a door, plywood on the base, and then start making vent windows for the top.
Here is the space left for the doorway. It will be a careful custom fit.
Again, in retrospect, I can't stress enough how important it is to fit everything perfectly from the beginning. I only had to change one strut size by one inch, and I imagine everything could have fit even better had I started more carefully. Who knows, maybe not. It's amazing how the math works though.