I saw the thread of the cardboard pyramids. I attempted to make my own based on your pictures, but it seemed to come out more complicated than the alphamid. Since it was just a model I was unsure if I got the height right or if I scaled it if there would be any fatal flaws.
Looks like Sketchup will work with my OS. If you really do have an alphamid pattern, I could give it a try. My email is diane at santa barbara hikes dot com. No spaces.
I was also wondering if it would be out of line to ask Oware if they sold the pattern.