Ok so I have plans to grow in my 2ft x 3ft closet. Im going to use auto flowers and i was wondering how many i can pack in there?? I was wondering if I have everything on my list right and am i missing anything. List: 400 Watt hps (going to use from start to finish) 400Watt ballast Soil Pots White paint (for the walls) 9Ft vent Fans (how many??) Seeds ofcourse Ph tester