[Cazador]

Just a thought for your consideration:

If the top enclosure was just a little bit taller, you could drill small holes through the walls through which to insert dowell rods to support a removable floor. Then if desired, you could divide that top enclosure into two separate enclosures. That would probably mean using a heat mat to heat the bottom portion, and you'd need to add vents to the lower section. The (plexi)glass front would have to slide sideways or fold downward, though.

Rick