just started thinking about starting a grow box in my closet for a few autos. probably going to do a 200w-400w cfl set up with the lights depending but just wondering if my design and measurements would work. ventilation/temp/humidity is my main concern and im doing to be using 2 80mm cpu fans with 33cfm. 4 in ducting with a 40 sq in slot for the intake. any ideas for help are welcome.