New 4x8 tent

Hi all,
I just bought a new 4x8 tent 2 600 watt ballasts, 2 air cooled hoods, a 6" inline fan, a 8" inline fan, and a 20"x6" carbon filter. I was going to setup as follows: fresh air from outside->hood->hood-> 8" inline fan-> exiting out of house through chimney stack. I am going to add CO2 which is why I don't want to exhaust air from the room. With the 6" inline mounted to the air filter scrubbing the air inside of the tent. Here are my concerns with this set up.
1. With no exhaust, humidity is a concern.

Or option #2
Filter(inside tent)-> hood->hood->8" inline fan-> exhaust out window or chimney stack. The I would use the other 6" inline fan as an intake fan. My concerns with this setup are:
1. I do plan on adding CO2, would it be worth it or pointless if I'm exchanging the air in the room?2. With a 20"x6" carbon filter filtering the smell would it still stink, would I be able to exhaust the air out of a basement window that faces the front of the house?


Or option #3
Tell me your configuration based on the equipment as listed.


Thanks,

Hook up your 6'' as the main room exhaust and have it on a timer so it shuts off when CO2 is on. You don't want to have fat moldy buds and then your odor control will be more effective too. IMO.