From the top of the net pot to the ceiling it is 4ft 9ins room is 7ft wide 10 ft long and 7 ft tall. will this room work?
I think it will work just fine, you might want to spread them out on the longer distance more, and possiblly offset the centre 2 slightly, to give you a minimum 40-50" from tote to tote, and 25" or so to each light. And it may sound silly, but with your ac limitations, it may be a better idea to run 5 pkants and 4 lights. Sure, you don't get as much light per plant, but you'll have less cooling load on the room, and layout wise it would probably work better, put one mpb right in the centre of the room, and your other 4 right in the corners.
You might even want to offset the netpot in the lid to get it more in the corner, again as you'll have no growth on the wall side and will give you more room to the light so they don't grow into each other. I would highly recommend looking into cool tubes, as your really gonna struggle with the ac size you have, and also keep in mind if you use a window style ac, or a portable, that these will vent air from the room outside, so you won't be able to run a sealed room and co2 as you'll constantly be losing it thru the AC. Maybe save the extra money and buy a mini split? With 4 lights, cool tubes and co2 you would probably get away with 14-16k btu, 5 lights maybe 20k btu?
Ozzie