I have built wood enclosures for iguanas, monitors, basilisks, and chameleons. The only differences were: chameleon cage was wood frame wrapped in hardware clothe, monitors/iguanas/basilisks were just like the uro cage, except the tops of the cages were hardware clothe. I had originally planned on making the top of this enclosure hardware clothe also, but after reading some of the archives (Thanks to Pro Exotics page) and reading one of Robyn's responses to my inquiry below about a suitable cage, I decided a plywood top with a 9"x9" square hole for the basking light would be suitable. As Robyn pointed out to me, the natural ventilation from the edges around the doors, and areas like that, is actually a fair amount in a home made enclosure. After I finished this enclosure, I looked at it and realized there actually is a lot of areas for ventilation. In my case it was because I only had a circular saw and drill to build this with, so not all the cuts were perfect, so there are multiple gaps which can't be seen in the photo. So, I'm going to give this one a try and if it seems there's not enough ventilation, I can easily fix that with a saw, some hardware clothe, and about an hour of work, if that. Sorry for the long response 
-Brian