[Mikes]

Like Croatan I did not use a vapor barrier in my walk-in. It is 8'x8'x10'. All sheetrock with hardwood floors. I primed the rock with an oil based killz primer and then used 3 coats of exterior latex paint. No mold issues going on 5 years now. No need to worry about mold growing between the vapor barrier and wood panel b/c you can see the walls. I use one of Bob's set and forget habitat monitors hooked up to a bemis 5 gal humidifier that is plumbed into my water line with a float valve in it (auto fill). For cooling a window a/c unit...but my friend in SanAntonio did a closet inside and used a wine cooler (big thermo electric) that does not remove humidity and causes no condensation build up which would need to be drained.

I say pull the carpet and pad if any in the space you have....lay tile or hardwood. Prime and paint the walls. Add elfa shelf, a humidifier, a control unit, and some sort of cooler if need be and be happy ;o)