So after about 4 hrs of play'n electrician I was able to put together my first completely custom cable.
This is an extra long 32" 8pin CPU power cable. I used 18awg white primary wire female ATX pins on both ends. The blue end goes to the main board to better match the main boards blue male connector. The black end goes to the PSU Seasonic Platinum 860.

I have it leaning up against 1 of 5 Feser Triebwerk 55mm thick fans.