Gobbler, the OSB is on the interior walls only, for paneling. I used 3/4” treated Advantec flooring for the building to sit on.
The camera is a small bullet camera that has a 16mm lens. It feeds to a small monitor like the back up automobile monitors. Both are DC operated.
Looking forward to seeing your designs again. It’s good to post them now and then to refresh memories, and for newcomers.
As to my designs, some are mine and some came from members on this forum. I got the window foam idea from DannyK. We can all learn from each other and incorporate certain ideas into our own individual needs.
This is the camera I use, a KT&C EJ230 bullet camera. It was just slightly over $100 when I got it. Prices have gone up.
https://www.ebay.com/itm/400462434562