I'm not trying to argue with you guys, but is there any way my sketch will work? Or, would it be better to divide the enclosure into three?

If not, then yea, I will definitely look into converting the bottom into a snake/tub rack. I have never messed with racks before; they look so small and uncomfortable. I also don't understand how people can say the snake needs temperature gradient, water, and at least two hides, plus enough room for the snake to stretch completely out, and then say one of those rubbermaid containers will work. What am I missing?