A different "issue" than those mentioned, thus far. If you went with that enclosure and laid it on its side "which would allow the "door" to swing down" -- and out, I think you would quickly come to regret it. When said door was open all the way it would be lying on the floor in front of the tank which could not only make it very awkward to reach into the tank (as you would have to lean over a 3ft deep sheet of glass) but would also increase the likelihood of your breaking said panel should you drop anything or -- in a moment of forgetfulness or loss of balance -- rest your weight on the glass. Even if you figured you'd never open it all the way, you would have to create a way of not opening it all the way while trying to reach in over a yard deep sheet of glass while maneuvering items through whatever space existed. Your better option -- should such an item be seated directly on the floor, would be to have the door open up and out.
Though it wouldn't be cheap, have you checked into MartyMade products?
If there are any reptile expos within driving distance, you could see if MartyMade or some similar company attends that show. You could then look over their offerings or even have them bring your order to the show. Good chance they would not charge you shipping in that event.
I did assume you meant air movement, my mistake. Ventilation is largely irrelevant if other environmental factors are managed properly, and defeats the whole purpose of a terrarium. But if you just want a pretty glass enclosure for plants rather than provide a humid environment, by all means, ventilate.
I did assume you meant air movement, my mistake. Ventilation is largely irrelevant if other environmental factors are managed properly, and defeats the whole purpose of a terrarium. But if you just want a pretty glass enclosure for plants rather than provide a humid environment, by all means, ventilate.
I use three Exo Terras with built in ventilation holes and keep the RH around 75% with no difficulty whatsoever. I replaced the screen top with glass, but left all the vents open in the front of the tanks. Without any ventilation, the temps rise quickly into the low 90s.