Hey, I am working on my box and I have one question. How should I set up my carbon filter. Stealth is key so I want everything to be contained. I want to hand the 5inch (125mm) carbon filter inside and attach it with ducting to the 5inch (125mm) intake fan. I will have one 5inch hole cut in the box as intake and one of the same size as the out take to allow the fir to flow through. Is this good enough? I heard I need an out take fan but for me stealth is key and I have heard its not really needed.