Comment Re:Dust and Bugs (Score 1) 253
I agree with all this and think this is a fun project idea. I'd go cheap, because you'll fail, and then you fix it and repeat. So you should have something reliable backing this thing up.
That said, make a case out of furnace hepa filters and duct tape. You can just mount everything on a board to be one wall of the 6-walled box. Hang that from the ceiling with wire to reduce visits by crawlers. Spray some raid around the top where the wire (and any cables) hits the board.
Just to be certain about the humidity, put a chemical humidty-wick in there. If humitity is a problem, you'll know in a while. If it's not, no harm done. Here's an example of one: http://www.wayfair.com/Humydry...