An interesting idea.
But, I would do things differently.
Exactly how will depend on the level of gaming pc that you will ultimately want.
I agree on skylake as the basic platform.
If you anticipate a cpu like the I5-6600K then I suggest you start with a Z170 motherboard that will let the "K" reach it's intended potential.
If you are looking more at a mid range gamer, then I suggest you start with a i3-6100.
It is likely that you will never need to replace the cpu. It is that good.
You do not need a separate cooler; all non "K" processors come with an adequate stock cooler.
They come with pre applied thermal paste too.
On ram, buy what you need up front in a 2 stick kit. Buy a 2 x 4gb kit which should be sufficient forever.
Adding ram is no good, ram sticks need to be matched. No ram vendor will support disparate sticks.
No need for a GT610 graphics card. The integrated HD530 graphics is much stronger.
I will never again build without a ssd for the "C" drive. It makes everything you do much quicker.
120gb is minimum, it will hold the os and a handful of games. If you can go 240gb, or 500gb you may never need a hard drive.
I would defer on the hard drive unless you need to store large files such as video's.
It is easy to add a hard drive later.
Samsung EVO is a good choice.
Consider your ultimate graphics card target before buying a psu.
430w will limit you to perhaps a GTX960.
Here are other options:
http://www.realhardtechx.com/index_archivos/Page362.htm
I would suggest that perhaps something in the 500w range would be better.
EVGA is a tier 3 unit. Not bad, but try to buy a tier 2 unit.
Here is one list:
http://www.tomshardware.com/forum/id-2547993/psu-tier-list.html
Seasonic is always good.
Do not pay more for modular or efficiency on a budget.
I have no problem with a cheap case.
Your case comes with a 120mm fan which is sufficient.
I would move it to the front as intake.
No opinion on the monitor.