Those were a good read and I am definitely going in the right direction now.

My initial set up will be:

- 2 x Nvidia 1070 GPU's https://www.scan.co.uk/products/gigabyte-nvidia-geforce-gtx-1070-windforce2-oc-v2-8gb-gddr5-graphics-card
- Intel Pentium Dual-Core G4400 3.3 GHz Processor CPU, I did read that the CPU isn't as important, so is this overkill? https://www.scan.co.uk/products/intel-pentium-g4400-s-1151-skylake-dual-core-33ghz-3mb-cache-1000mhz-gpu-33x-ratio-54w-cpu-retail
- 100W Gold certified PSU https://www.scan.co.uk/products/1000w-corsair-rm1000-x-series-80-plus-gold-full-modular-sli-crossfire-single-rail-833a-plus12v-1x135
- PCI risers https://www.amazon.co.uk/gp/product/B073F1QHZ5/ref=ox_sc_act_title_4?smid=ATVCPMRF6NI2O&psc=1

And I have also found various rig frames on Amazon, as well as a power button and a version of Windows 10.

My only issue is finding a Motherboard that will be suited to run what I have found, some I have seen on Amazon have in-built PCI slots, whereas some don't. I am not the best with sourcing Motherboards, but once I have one that fits into the picture, I will be more than on my way.

Please let me know if I have missed anything too!