Well I would definitely go hydro. I'm not a dirt farmer. I would buy 2 of these ebb/flow tables maybe these.... Big Foot hydroponics system from 4 hydroponics.com by Growco Indoor Garden Supply
and go from there. Two 4 watt cool tubes would be fine for these dimensions, use mylar too. Definitely fresh air intake and extake in addition to venting hot air out. As for odor control, I guess a carbo scrubber would do the trick.

Man I wish I had a spare closet like you!!!!!!
Passage to Indica Reviewed by Passage to Indica on . 2'x8'x8' closet .... what would you do ive got a 2'x8'x8' closet .... what would you do thats 16 sq ft 128 cu. ft. im thinking 4 or 5 180cfm cfm fans exausting to the attic 2 400 watt hps 8 plants in 5 gallon buckets Rating: 5