Help Convert Closet to (small) Walk In Humidor

[SoCal gunner]

I'm no pro but I think you would want some kind of vapor barrier between the drywall and SC especially since you will be adding humidity to the room.

Just thinking out loud here I wonder if the added humidity would cause damage to an open outlet I'll try to remember to ask next time a good electrician comes in my work, unless someone here knows.

What do you think: tack up some plastic sheeting (?mils), tape the seams? Just found an old reddit post where they used luan sheeting for the walls to save $$. What do you think would be the best way to hang it? I want to stay away from adhesives due to off-gassing, etc. But every hole is a puncture through the vapor barrier.

Never thought about humidity and the outlet - wonder what B&M shops do?