I'm kinda inclined to go along with Longblades........a video would be nice.
Maybe make it a full length feature of them climbing up and using the cat walk.
Another thought......maybe you might find a stud finder of value when you're attaching things like this to the wall, or hanging heavy pictures. It helps to make things a little more secure putting the nail or screw into the stud.
I've used one for years.............not often, but nice to have when needed.