I finally got a lens with enough coverage for 8x10 late last month. I was hoping for something with bigger coverage but you take whats given. The plan is to build a box camera around the lens. I'll have enough plywood left over from building the camera to build a second box for the enlarger. The camera I'm building will be 10x10 at least the enlarger could be just 8x10. It would seem just putting a light source in the back would work but I know things tend to turn out harder then they look-)