Here is Version 1.0
I've been doing some testing through the night and this tank maintains a humidity of between 65% and 75% in a completely empty tank! I put the tank in a warm place, cold place and windy place, and the humidity stays in that region! Excellent!

I also put it into a humid environment and it easily reaches 85%. I brightened up the LCD display in photoshop so it's a bit clearer.
The glass is all 3mm and curently fits so well that it just locks in place, but I will be adding a 2 part magnetic latch which I will silicone in place. The metal part on the glass door and the magnetic part inside the tank. NO sling will escape.
I am thinking version 1.1 will be a deeper so that the area for peat and tank decorations is a perfect square, or in other words has the same amount of ground area as a tank without the reservoir.
But for now, I have 5 Avicularia versicolor that are going to put these tanks to the test.
HS