I'm building an enclosure for my iguana. 6ft×32' and 32' deep (made from ply wood). This is my first time building something like this and I am in need of advice badly. What can I use to paint the outside of the enclosure and what kind of waterproofing should I use for the inside that's safe? I'm also planning to line the inside with contact paper and putting indoor/outdoor carpeting on the bottom and shelves. All the advice is greatly appreciated. Thanks.