no way could i even think about doing it here at my house. i use ice boxes to cool the exhaust on my lights which is blown back into the tent. then i just have a single fan, carbon filter, and ice box that acts like a spot ac. it's hooked up to a thermostat controller. i would have to get 5-6 of those things going just to cool 1 tent if i wasn't cooling the exhaust on my lights.
at the big room i ducted all the lights to the return on the water cooled air handlers. much more effective that way. if i installed parabolic reflectors i would need 2 air handlers in each room.
those reflectors are worthless in my opinion. i know some guys love them but i can't see how they can be effective with water cooling.