stadium grow / sealed system

Possible sealed ???!!!!???
permalink
im preparing to build either (1) 11'L x 6.5'w x 5.5'h stadium with 4 or 5K watts.
or (2) side by side stadium rooms at 7.5'L x 5.5'w x 5.5'h.
the latter being preferable but more cost prohibitive to get started...

I REALLY want to keep a sealed system.
and may select a different setup in leau of a stadium if I cant do it. I do not believe that this setup would be nearly as effective with any form of cool tube application as I have considered all possible options.

who has some thoughts regarding whether I can get enough AC in there to offset the open bulbs.
I was looking at a 28000 btu wall unit and a even a supplemental portable unit if necessary. but I dont want to fry my babies!
I figure setting up an emergency exhaust in case things go over 82 degrees.... but.

this is the only hurdle I cant get comfortable with keeping me from pulling the trigger and getting it rolling.

please give me your thoughts.

The Co2 should handle things if room is sealed and also under hanging lights in center of stadium place a stong circulr fan pointing up to cool lights and it should work as the ac that doesnt cool it will be taken off the floor as hot air rises and cool air falls so then the fan will shoot up the cold air into the lights and should also mist the p[lants with co2 from that fan and posibly other ocilators around stadium if rooma availible. PM me if you need to im good at designing rooms of all kinds! Peace, M3

check out my grow " the dukes 3000w purple stadium " i got cool tubes and a litte 5000 btu ac and it bearly even runs to keep temps at 78*