The liquid cooler is a bad idea. Not only is it overpriced and overpowered, it has a far higher chance of catastrophic failure when compared to an air cooler. You have to take into account the possibility of leaks, contamination, and pump failure. Getting a good, solid air cooler like a Noctua is a far better option if you insist on an aftermarket cooler. With that you only need to worry about fan failure, and many of them use dual fans so that's no issue.
Additionally, that case is pretty awful. It has
bad build quality issues and the design is flawed overall. And that's not even mentioning the extremely poor HDD cooling in the lower chamber, with one choked 120mm fan cooling all 6 drives. Nor the low-quality drive mounts which don't hold the drives securely.