Hi Haggisdog
I'd go with the i7-7700k as it's the same price as the 6700k, you'll need to update the bios with the bios flashback feature for the Maximus VIII motherboard to recognize the cpu. You'll need a usb flash drive to update the bios, if you go with a Maximus IX board the 7700k will work out of the box.
You'll want a DDR4 ram kit and G.Skill Trident Z is popular.
I'm with you on the Antec Kuhler, it may not be compatible.
Did you see which way the flying monkey's went? Let's team up and go get your icon back.
😄