I see nothing wrong with your build.
You do have a case??
As a matter of preference, I would not use an all in one cooler when a good air cooler will do.
Liquid coolers tend to be noisy, expensive, and less reliable.
I see tales of woe from leaking coolers. For the same price, you can buy a Noctua NH-D14 or phanteks and cool just as well.
a 4670K gets very hot after you give it 1.3v. Great cooling short of ln2 will not give you much more than .2 or so more oc. I gave up and am content with a no hassle 4.0. How well you can do is mostly dependent on the goodness of your particular chip. I really think that a cm hyper212 will do the job and the money is spent better elsewhere.