I am going to have a 6 foot doorway... So I can pull the trays in and out I. The future... And use a roller blind as a door lined with panda film.... That blind will go to the floor and serve as a intake for the room so I can leave it up a few inches off the floor... With the 8 inch exhaust
that might be your best bet ! but you might need both fans for exhaust , especially with open bulbs ......