I have read in multiple places on this forum that each S9 puts out about 250cfm of air. So if you got 10 of them you'll need to exhaust 2500 cfm of air. If your fan is 5000 cfm, then you should be good. I would consider two fans if I was you. 5000cfm for exhaust, and 5000 cfm for intake. At least that is the setup I am trying to go for.
I am using 4 of these fans. 2 for intake 2 for exhaust.