I currently run 2 1k hps & 3 600 watt hps all on adjust a wings, I have a two ton Mitsubishi mini split, & a quest 155 for dehumidification. I have CO2 tanks and the room is totally sealed. My ceilings are 8'. Everything runs smooth, but I was wanting to upgrade to the gravitas 6/750 flex with the EL1. My question is how many of these gravitas can I adequately fit in my room without overheating it. Also any light layouts would be much appreciated, I've emailed gavita-holland a few times with no response!