Enough light for this new tent?

So I'm upgrading from my 2'x4'x5' tent with a 600 watt lumatek digital 600 watt ballast.

I bought a second 600 watt dimmable digital ballast, so I have 2 600 watt lumatek MH/HPS lights installed into 2 6" Hydrofarm Daystar AC hoods.

I'm thinking 4'x4'x'6.5' or 5'x5'x6.5' Secret Jardin DR 120 or DR 150.

Thats about 200,000 lumens

I cant decide though. The watt per sq. ft ratio is much better in the DR 120 (4'x4'x'6.5') but I'd have more room for equipment in the DR 150, such as fans and the like.

Having the 2 reflectors ran in line is pretty much 4' in itself. I was thinking about running them side by side, and using a Y connector to channel the air in through one duct, and out one duct using my Tjernlund 550 CFM inline 6" fan.

Any suggestions? Would the 5'x5'x'6.5 be too big for this set up to produce dank, dense nugs?

Oh, and I'm running a 200 CFM 4" inline fan with a 4"x12" Phresh filter (200cfm) for odor. I'd have to upgrade my carbon filter set up for the 5' tent, but I'd honestly just stick a 6" carbon filter on the intake part of the hoods before the Y connector. Would that work ok?

Thanks guys and gals.

I went with the 5'x5'x'6.6' DR150. I'm going to run a phresh filter (6") off my tjernlund fan. The two hoods will either be inline to each other, or side by side via a Y connector. All 90 degree bends will be replaced with plastic elbows to aid in maintaining flow of air.

My 4" inline fan will be hooked up to my 4" phresh filter, and plugged into my AIR-1 climate controller to control humidity. They are both on speed controllers, so getting the temperature and humidity right shouldnt be a problem. If I need to, theres a window nearby I can open or vent out.

Also, due to the power of the lights in this grow, I'm definitely picking up a 6 kg Flame Defender. They are a bit pricey, but totally worth the relief of some stress.

I'll let you know how things go with the set up once its put up.