Keep in mind that BP's in paticular like security ... this means close walls and not too much time exposed and in the open. If you're going to go with a pretty big enclosure you are going to need lots of hides because BPs don't feel safe in the open and get stressed... this stress could lead to a fast. I'm not saying don't build a big enclosure after all, BP's have plenty of room in the wild, but keep in mind they spend most of their time hidden in close quarters such as inside hollow trees or tree limbs or under ground. Just so ya know - not bashing the idea I want the best for my BP as well.