Slim fan recommended that clears mezier ele water pump

Seems like a very marginal rad size for the HP. I hope it is at least 3 rows thick.

To move adequate air, the fans need to have a few inches of depth.... so I agree with the approach of 2 fans. But the rad needs to be a lot wider than that to get 2 fans spaced on either side of the pump and also overlap the core so they can properly draw through the rad core. So I am really thinking you need 3-4 smaller (but THICK) fans, 1 or 2 on either side of the pump housing.

The stock pump setup sure would be easier and be more straightforward.