i think that is a bad idea. you dont want to move this thing everytime you want to get into it, all your plants will get jostled and maybe fall over, or the whole damn armoire will fall!
just seal the doors up in the front, there are enough threads on here or on google that show how to seal up the doors. very nice cab, but I also would not force intake, because when smell control becomes an issue your intake will force the stink out of your cab through every nook and cranny except for the exhaust fan where you would put your carbon filter. all in all good design, and the cubby in the bottom is great to prevent intake light leaks.