Newbie grow room design...... any thoughts, opinions?

I'm completely new but have been lurking trying to gather info. I jumped in head first with disastrous results on my first grow. Heat being the biggest issue. (Arizona). So I'm moving everything into a cooler, BIGGER room. I don't have a lot of money to buy more stuff so trying to make work with what I have. The new room is the coolest & biggest in the house. Avg. temps without lights 75 degrees. I drew up the design I'm thinking of. Please let me know what you think. Especially about the air flow good or bad. Thanks. Also I want to have the possibility of adding a third light & group of 10 in the future.

Blue Dream clones strain

10 plants each 1000 hps in fox farm soil 5 gallon buckets a month apart in age between the 2 lights.

2 Co2 bags on each light

you still may be surpised on the heat. 2k in bare lights makes for some intense heat, not to mention if you have magnetic ballasts in there also.

Thank you for the reply. Would you do an exhaust fan, & if so, where would you put it? I was thinking of cutting a hole in the ceiling between the 2 lights & putting a fan up there sucking the hot air to the attic...... Thoughts?
or running ducting from the holes in the top of the hoods where the light go in at & sucking to the fan in the attic......

Here's a quick side view of the room

An exhaust and air cooled hoods would be the best way to go there is no need for an intake with a fan unless you have a ware house sized grow going on, an exhaust would also allow you to eliminate odor if you need to.

Here's an update. The design didn't work AS good as I thought. So I cut holes in the reflectors & suck the heat & smell out through the holes into the garage. works perfect & no more heat issues. Also added a portable air conditioner.
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