Ok I finally got around to ordering all of the stuff I need and realized a new problem.
The fan at the top of the back of my case is only a 90mm and my radiator and fans are obviously 120mm. Is there any way I can still mount this?
In the picture, the blue box is where i was planning to mount it until i realized the size incompatability, the red box is how wide its supposed to be, and the green box is the approximate size of my rad. I thought this might help anybody who might be able to come up with a way of mounting this.