Ventilation for HydroShoot 80x80x160 cm?

Hi, i'm planning my new setup but i'm confused about the ventilation.
I will be using Samsung LED's for light, probably 1-2 plants scrogged, filter, 2m of extraction tube and ideally passive intake.

1) How much airflow (m3/h) for negative pressure do i need?
Secret Jardin suggests only 60 m3/h, so in my case i'd probably need ~100m3/h ?
2) Is it good to choose passive intake? .
I've seen many kits including extractor and instructor.. i guess for increasing the total price
3) Should i use 1 or 2 fans inside the tent and what Watt rating?

Thanks rollitup. Btw, i'm so happy coming back to this forum after a long period

I think one small fan 4'' inline fan will work for your small tent, I am using 6'' inline fan in my Mars tent 5x5

Any recommendation for the inline fan (cfm) and filter?