that sounds good Jdog...one thing to be concerned with...I found out one dark night. I was walking back from growlabs...and saw the light, just beaming out of the side of my building...
You need to build a shoot over the window unit so HID light beams don't shoot across the yard and onto your neighbor's wall...know what I mean, vern? lol, it's not that funny though...goodluck, be careful, make it light tight!!! There is a book 5 easy gardens by Jorge C. It shows a diagram of what I am talking about...if you can't....wait a minute, maybe I can scan it to this post...

I thiunk I got it...Just put ac in place of fan in bottom right pic (light baffle)
hope this helps

By the way, everybody...I bought this book Marijuana indoors-5 easy gardens
and Jorge's The Indoor Bible awhile back off Amazon.com they have a large assortment of new and used books on this topic...and you can even pick the condition...

Both books and shipping were under 20 bucks total...that's a deal.lw