Exactly why most of us frown on using PMs for help. The next person to read this thread has no idea the OP's requirements changed so they come along and read the initial thread and get misinformation. Posting half in here and half in a PM only makes things confusing.
i5-7600k
Z270M Mortar
GTX 1070 8GB
16GB 2400 DDR4
850 EVO 250GB
WD BLUE 1TB
23" LED monitor
or a corsair RM550x??
Good build I have the Seasonic 650 watt version in my PC very good power supply.
I would get the memory in the 3000 MHz instead of 2400.
But still for your price a very good build. Don't forget a decent CPU cooler that processor comes with no cooler.