Homemade enclosure

[jspuds]

I'm new to this forum, but I wanted input on the new enclosure that I build for Frank, my BP that I've had for almost 3 years now (got him a couple of months after he hatched from a breeder at a reptile expo). He was in a 20 gal long for a long time, but now he's over 3 feet, so I built him this wooden tank that is approximately a 42-44 gallon long (if that existed.) All the wood has been sealed for water-resistance.

There are gaps above and below the doors for ventilation, as well as small-grid vent covers (not displayed) that can be opened for extra airflow, such as in the summer.

I'll get new pictures of the enclosure when furnished. He has two hides, UTH, water dish, and I've been using B&W newspaper / paper towels for substrate, and soon to be a radiant heat panel (there is a thermostat, I need to up the temps a little bit more.)

I am also in the middle of making it look nice. Experimentally, I have a very hardy species of bonsai tree in with Frank, which he has coexisted with for approximately 2 months now. He appears to like it and climb on it, yet isn't able to crush it. Any thoughts on possible problems with this?

I am also making a grout-covered styrofoam background (to look like rock) to cover up the wood, w hich I want to drape fake or real ivy over, as well as throw in some logs from outside (boiled, of course).

I know that more natural set ups like I'm planning are more difficult to clean, but frank and the fish in the tank above him are my only pets at the moment, so I'm OK with the extra time required.

Questions:
How bad IS reptibark with regards to mites? I do have Provent-a-mite, and I'm okay with boiling it and so forth beforehand. I _really_ like the look of it, though I haven't used it yet.

Any potential problems with the tree I didn't think of?

Anything else obviously wrong here? What do you think?

Jim

And for the pics (ones with tank furnished to be taken later):
http://i175.photobucket.com/albums/w...s/DSCN1108.jpg