Stealth Grow

I got a box of 3.5feet long x 4.5feet tall x 22inches wide. Im going to grow Afropip's Sweet White Malawi. I bought my friends old lights including a 400watt HPS and 2 42cfl and 2 bigger cfls for 90$. The 400watt fits in and I have it hung up and ready but Im concerned about the plants completely filling up the space and over growing. How many plants would i be able to fit in here? Also, do carbon scrubber's make noise?

All u gotta keep in mind is temps first of all. That 400's gonna get hot even if it's air cooled, this could come into play later in ur grow. Be sure u got the temps under control before u even start. Also take into consideration the plant doubling or even tripling in size during flowering. If u plan this out ahead well enough, even if u can only grow a small plant or two in there at least u'll get somethin out of it.

i got temps under control. i just need smell to be perfect