I think the biggest hurdle would be finding 3 nice, matching, pendants. I have 2 hqi's and 3 hydra64s in a closed canopy. A vent(3" slot), along the back of top, running the length of canopy and some fans go a long way. I'm in fl with 78-79* ambient temperature, running a dehumidifier to force evaporation without wetting the house. I do have a 1/3 hp chiller plumbed in as backup in case central air conditioning or dehumidifier fails. It hardly ever runs. Dehumidifier is almost mandatory with a tank that size regardless, my 180 was evaporating about 1.5 gallons a day, that's alot of moisture soaking into your house. Don't want to encourage mold or mildew