I have 7 case fans I have 4 exhaust and 3 intake. The 3 intake are 200mm one in front, one on top, and one on the side. The exhaust are one 120mm on the bottom, two 120mm push pull on the back and one 200mm on top.
Yeah I know about the top, it has two 200mm on top one in put and one out put. That being said leave the two 120mm on the side because it will have more air flow then the 200mm.
You might want to make your top 200mm a exhaust because heat rises. I have my 200mm strait up from my cards to take out the heat. Anyway I hope this has help and good luck with your cooling.