dude, you're all over the place.
may i suggest you begin a new thread in the Growroom Design & Setup forum?
take a few minutes and itemize what you have (closet #1: size, ventilation, etc. close #2 . . . tent options, etc.), and what you would like to achieve. give as much information as possible up front.
it seems like you're trying to get an hps . . . which i'm saying may not be your best solution. one of the first parameters to look at re:lighting is the shape of your space. when using a point source such as HPS in a small space, it works better if the space is a square, (like the 4'x4' tent). if your space is a rectangle like 6'x2' then a linear source such as fluorescent is the way to go. Fluorescent is in the same ballpark as HPS in efficiency (lumens/watt).