I had to stop looking at your pictures, Chris, as I was getting greener every second - my damn texas house with no basement! Looks like you're going to have a terrific entertainment area there.
The closet itself, per gonk, seems open enough that you can get away with one or two blasters, per 3no's suggestion, and that way you won't have to futz with the sticky blinkers every time you move or replace units.
Please keep the forum updated on your progress - so I can live vicariously through your dedicated home theater...
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--Greg