After some help from you. my design is ready, time to start building.

it's obviously not to scale but you get the point. hoping to get 5 nice babies in there

Looking like you are on the right track, now grab a hammer and get busy, we need bud porn up in here

Peace and Great Grows

Asmallvoice

Just a thought you could get away with not having 2 inline fans. You could pull through carbon filter through cool tube and then exhaust heat from room and light in one shot. Your way is better as you would be cooling light more with outside air as opposed to warmer air from cabinet. I just run one 4" fan 160 cfm and can maintain temps between 78-80. Just a thought if you want to save money and have less noise. My closet is 2x4x8