My green Iguana (Hulk) is almost 4 years old now. I am moving into a new house soon and would like to build him a huge cage outside. I live in Overton Nevada and it get HOT HOT in the summer. I have more than enough ways to keep him cool so don't worry. My question is. What kind of other animals can I have in the cage with him? I am 6 feet 5 inches and I want to build a cage big enough for even me to stand up in and walk around. I would like to put birds, and maybe frogs and small non iguana lizards. Any ideas or information you can give me?