Great looking setup!
A few questions/suggestions:
Have you tested running both HID's to check temps? I would imagine you could have heat issues running both of those HID's in that tent without cool-tubes.
I know in my tent, which is a 4x8', I would definitely have heat issues without cool tubes.
Your expecting 5+ oz per plant. While that is certainly possible with 9 plants I would imagine you would need to veg them a very long time and incorporate a SCROG.
The last thing I noticed was your carbon filter/extraction seems small for your tent. I'm using an inline fan/carbon combo that pushes 440cfm which is way overkill but necessary to manage heat/odor.
Hopes this advice helps. I'm fairly new myself so take it with a grain of salt. I'm sure more experienced members will be able to advise you much better.
Wish you the best of luck!
Edit: Looking at some of your previous posts it looks like that's the direction your heading with a grow every 6 mos and using a SCROG. I would highly recommend a porta SCROG also called a grow through plant support. I found some at home depot for $2 ea. It's basically 3 legs with a screen on top. You can also find these on Amazon.