It's just not needed though tbh...
On the Corsair 300r you can put 2, 140mms in the front, and 2 140mms in the roof, then another 120mm in the back...
You dont need anymore fans that that at all.
You really dont need 2 fans for the gpu...
And sound will be a problem - trust me. And you dont need to use a fan controller - and with that many fans in your case, half the fan controllers will actually add noise