This is the current plan for housing Mildred, my green iguana

I doubt I'll be able to accomplish something like this. I'm not a carpenter. Here is the link, nevertheless: http://www.lizardcages.fws1.com/iguanaworld.htm

I've been searching for books on constructing something similar, but the books in this place are too well hidden withing the dewey decimal system. I really need to seek out a librarian about helping me find something. Does anybody know of a herpetology enthusiast working as a librarian?

Other sites I've only skimmed are: http://www.anapsid.org/iguana/caging.html and http://www.atombum.com/cazicsplace/MyPad-5.htm