attaching the video in case, around 4:50 i show what I did to get the IEC cable above on the Temple board, you can also see the Y cable etc..
I'm using a Y cable underneath the board, so it splits the IEC into two IEC connections before it goes to the Cioks SOL and the FM3
if you're not keen on doing your own power cable, you can dremel/cut through one of the holes in the corner of the board, unscrew that one side, and then place the IEC cable through there and reattach that side , that's what i did on my board, works a treat