Guess I have to change my thought process on this. Really good info, thanks FR. I am going to pump out this new cage asap.

On the screen top comment. Theres not a screen top on there, its a 19/32 thick plywood top with all the vent holes pluged on the with silicone. The wire part is the part around the light so the lizard doesn't climb into a 400 degree mega ray bulb.

To keep the humidity up I have a monsoon watering spray unit hooked up to a timer to mist for a short period 6 times per day. Keeps the sand/soil mixture from getting super dry and bring the humidity up to about 70%.