I have interest in assembling this, but I'd love to buy it. I wasted about 1k on trying to design a small backup phone before realizing I couldn't get it down

I have interest in assembling this, but I'd love to buy it. I wasted about 1k on trying to design a small backup phone before realizing I couldn't get it down to the dimensions I wanted. I'd need like half a million to actually build this thing. However, I really want to see more hardware with open software. On the other hand you have open firmware for some cannon cameras if you want to do that route.