Sounds like a good idea to me. I would only suggest that it be lined with something that can repell water (a lamenet of some sort or maybe a piece plexiglass on bottom) for cleaning purposes. I'm in the process of doing the same thing. My Boa will not be ready for it for at least 1 and1/2, I just enjoy building things. The enclosure I'm building will be 3 foot wide, 8 feet long and 4 feet high. I plan on my little guy getting big. (even though he is a male and that is asking alot) but so far he doesn't even like to use the gound so I have vines wound all through his enclosure which is how he moves about (I've still yet to see him in his hide). My biggesst problem is trying to figure out how to keep some sort of system in the air for him when he gets bigger. 60lbs is not easy to support on plastic vines ( who knew lol). Well best of luck and keep us up to date because I'm always ready for new ideas to add to my projects.