K here's a link to a post with a video I did a while back about one of the two beds: post. Here's a photo of it too: 
I'll snap a photo of the other one tomorrow when it's light out so you can see that one. It's mostly just wood and screws and hardware cloth. :)
That is the coolest cage! I bookmarked it. I love how it opens up. My house is on the side of a mountain surrounded by woods on all sides. This would help in the future when we expand our garden to keep out the raccoons and possums. Thanks for the amazing post to show how you did it.