First Mackintosh for help!

Hey guys,

I have a MBP 2014MID. Now I need a Mac more faster to PS & LR. I'm considering building a new Hackintosh after reading this article. My budget is $900-$1k. I'm a photographer, I play game a littile ,so I don't need top-of-the-line graphic card.But I want the DP displayport (the color is much better than HDMI ? ).

Here are some critical parts of my future setup:
- mATX
- Plenty of RAM...

First Mackintosh for help!