What kind of temp will the room hold? How are you controlling the temp? I'd be interested in finding out what kind of condenser you used. I have a similar closet for fermenting and storage and use a portable AC unit. It's not ideal though as I can only control the temp down to about 62*F. I can get the room colder, but then I can't control the temp well as I'm using the unit in dehumidify mode.
Drinking on the keg: BPA, Brown Ale, Dry Mead, Wee Heavy aged on Oak, CAP
Drinking in the Bottle: