Love the engineering it sounds like you've put into this to maximize your grow space so you can control the environment as easily and the best way that you can, especially since you're also saying that you're about to start your first grow within it. I'd love to see pictures of the different...
I have 4x4x8 tent, currently just 4 autos at about 6 weeks and here is my setup:
4" carbon exhaust running constantly to keep air flowing since I'm trying to 'dial-in' temp and humidity better because my VPD climbs a lot daily when lights are on; so besides the 4" exhaust I have four (4)...