I'll check the template, see how far I should come down, and trim it tomorrow. Then I'll add what boat builders would call chine logs, knees, and a transom. My concept is that there will be a rail on each side that firmly fastens down to the stake pockets. The cap will be hinged on the driver's side and latched in several places on the passenger side. That way I can open it from the sidewalk when parallel parked. There will be some way to remove the transom when needed so that long loads can stick out the back. There will be a plexi-glass window in the back slope just above the transom, but I'll be using my mirrors and turning my neck a lot too.
I could move the peak forward a little maybe and reduce the transom size, but I want the space, and this template position still looks good.