Nice illustration.

The problem I see is that the entry door is on the cold side. That makes it harder to insulate and cool in the summer. When it hits 100, it's going to be tough to keep it frosty in there. It would be cool if you could rotate it 90 degrees so that the hot air is blowing directly at the exit door. Make the cold side airtight with insulation so that your HVAC is pumping cold air into a sealed cooler, and the only escape for the cold air is through the Ants. No insulation on the hot side. But what do I know, I haven't even seen the thing.