And not big enough? This thing is designed specifically for water cooling, it's an XL-ATX case. You don't need massive fans, you need proper pressure ratios and alignment.
I'm going with parts on FrozenCPU, going for CPU, Gfx full covers and I'm incorporating my own design to cool the overall temperature inside with 1/8th tubes running an inch and a half apart in a verticals formation. Two reservoirs (one for CPU+full Gfx cover, the other for the verticals tubes) and I'm most likely positioning an external fan for an additional radiator that's a few feet away from the case with its own pump to keep those cool. The case comes with openings for hosing to be external, a reservoir bay, filters, and te case is MASSIVE.