Nice progress. I struggled on what to do for windows on my blind. Initially I wanted something small, like what you have, so I wouldn't bee seen in there. But after looking around, thinking about how to do it, I settled on single pane aluminum windows from Home Depot that where pretty cheap. They work great at keeping the weather out, they are easy to open, and since they slide up, they are out of the way when opened. The biggest issue that I have with my blind is the windows fogging up when we have a heater going. Sometimes it's so cold that we will have two heaters going!!! My walls are not insulated, but my ceiling is. If I was to do it again I would insulate the walls and floor. I would find a way to vent the ceiling so I could get rid of the condensation, but I don't know how to do that. The more comfortable that I am, the longer I will stay in there.