are you asking if you can mix light spectrums from the hps and the LEDs the answer is yes you can though I would consider the heat this is going to generate but yes its fine and growers do it all the time god thats a big room. Spread them ladies out let them loose let them free. My friend does grows in caravans and he uses one light per plant and does have alot of success though the amount of light you are planning on using sounds like enough to fill the space. I would advise getting some large trays it you can even hydro systems have leaks and stuff sometimes if that soaked up by say a carpet that will be a mould spores holiday home which could be a a huge factor going forward just some food for thought my friend.