Yep. I have the longer zip-ties attaching it to the tub, and they're pretty sturdy. They may be heavy duty zip-ties, and they definitely look it. This lid is also really rigid and thick, so I'm not worried about it warping.
This will sound odd, but I hot-glued a lip of screen mesh around the edge of the RHP down to the tub lid. Don't want Maze somehow getting between the RHP and the lid. So far so good.