Maybe I wasn't clear. When looking at the cage from the front, I would remove the right wall (or cut a large hole in it), and provide another area for climbing. Yes, it's essentially building a new enclosure and attaching it, but I don't think it would be hard to attach it with screws and joints to the t8. I looked through home depot's website and didn't see any PVC panels, but maybe I can use something similar. I expected that I wasn't going to be the only one ever wanting to do this.