What species is appropriate for my cage?

Long story short I am getting a free cage from where my g/f works. She works in a store that sells some cosmetics and the backstock was formerly kept in a wood and wire cage with a padlock on the front to keep employees from pilfering stock. She told me yesterday that her boss said she can take this thing. It's about 7' tall, 4' wide and 2' deep. It has screened sides and a solid bottom, if deep substrate is needed I can build the sides up a little. Obviously because of the height an arboreal species would be best. Due to the depth a smaller species would be best. What are my choices for smallish, arboreal monitors that will fit in that footprint. Also, keep in mind that I am new to monitors but not new to herps. I should be fine with most easy to moderate species I would imagine provided I have good info on care requirements. Please recommend proper care for any species you recommend or at least a link to a good profile.

Thanks!

Ps- You think I'd let something like that go to waste!

I think it would be very hard to keep the correct temps required for monitors in a screen cage.
The basking spot alone should be about 135 degrees.
I would try to cover up a lot of the screen with plexi to help hold the heat in it.
You may want to consider mangroves or tree monitors for an arboreal setup.

Originally Posted by SPJ

I think it would be very hard to keep the correct temps required for monitors in a screen cage.
The basking spot alone should be about 135 degrees.
I would try to cover up a lot of the screen with plexi to help hold the heat in it.
You may want to consider mangroves or tree monitors for an arboreal setup.

It would be in a room with all reptiles that is about 80-84 to begin with. The cages with dragons have no problem getting around 120 in the basking spot under a 60w halogen flood. Despite the extra ventilation of the screen I doubt there will be issues getting it to 130-135 with a 90w halogen spot.