If you are willing to have the radiator on the top of the case I say roll with it. If you use the fans for intake instead of exhaust I would recommend the 2nd choice grill, it should keep more dust out of the radiator, and the temps inside of the case will be higher. If you use the fans as exhaust you may see higher temps on the CPU, but they might be as little as 3-5 degrees warmer. I say go with it and test it out, try the fans in both directions and see how the temps are.