Fan holder 120mm Corsair AF120 for Prusa

I like the design of binaryconstruct http://www.thingiverse.com/thing:26779 but the Corsair fans have a different (smaller) gap.
I have completely rebuilt the holder with Sketchup.
The fan has 63.47 CFM at 30dBA.
I have two of them running (one on each side) with this controller: http://www.thingiverse.com/thing:22202