Harsh.
But im sorry, op. I can not sympathize with you after the water leak. That's the risk when water cooling. I've had that happened to me with a few mobos, but only when leak testing/bleeding while everything was off. They all ran fine after a day of drying up.
If you're going to spend that much on hardware, why not get a caselab case?
I'm not knocking the 900D, it provides a lot for its price point. But if you want a full modular case with possibility of expansion, get a caselab. I got two