Need ideas for I7-6700K overclock

[Hardball]

I am putting a new system together based on the 6700K with an Asus Maximus VIII Hero Alpha mobo in a Phanteks Enthoo Evolv case. I am looking to get a 4.2-4.5 overclock out of it with reasonable temps. I would like to go with an AIO watercooling setup that is well-engineered and isn't too loud in the noise department. The reviews are all over the place on most AIO's, so I wanted to get some ideas on which ones might be good choices for this setup in order to reach my overclock target.

 

[UsandThem]

Cross posted in cooling sub-forum:

https://forums.anandtech.com/threads/looking-for-ideas-to-cool-a-new-i7-6700k-build.2501757/