A very nice build.
One caveat:
The case says 157mm max cooler height; the hyper212 is 159mm.
I suggest a cryorig H7 which is 145mm, even with a 120mm fan.
http://www.newegg.com/Product/Product.aspx?Item=9SIA4UF2DZ6565
You will have no cooling issue, exotic cooling is not needed for Skylake.
The FTW is about the highest factory overclocked unit; good pick there.
The Classified is more oriented to the overclocking enthusiast.
A tip...
Buy yourself a #2 Philips head screwdriver with a magnetic tip.
It is invaluable for assembly.