Added a 2" exhaust.
Runs from that inside 90, to an outside 90 then down a 6' or so 2" shop vac hose, then to a PC fan, I believe it's an 80mm and it moves a decent amount of air, cab has been sealed for an hour and the temp is 76.7F., 24.5C.
I'll still be adding an Intake and more than likely I'll also enlarge the exhaust port. Well see where I decide to route the end and the sound.
Don't mind the safetly blanket, it's sole purpose is to take that last little bit of light glow away when the room is dark.