Glass enclosures can be rigged to hold proper temps and humidity, its just that its much EASIER to do it with plastic, in most cases needing no modification at all.

Wood setups are tedious because you will need to seal the wood somehow, because the humidity levels you need for a BP will cause the wood to mold eventually. So then you get into a way to treat and seal the wood, and something that isn't going to harm the BP in any way. So you see where that road takes you.

Plastic containers are easy, efficient, and IMO don't look good at all. The looks of them wouldn't stop me though, as they are great for keeping a healthy snake.

Sounds to me like you want something that is going to look good and be functional. Ever consider Animal Plastics or Vision caging? These are a little bit more expensive, but work great, are easy to clean, and look very professional. Otherwise I think your only option is to rig a glass enclosure.