+ Total (United States):
CPU: Threadripper 1950x was on sale
MB: Cheapest x399 board with two 16x PCIe
Cooling: Thought to try air cooling first. If it doesn't work out, go for liquid cooling. I used the 6mm clearance in Noctua. Slightly difficult to screw two threads over cpu on mobo. 3mm should be enough!
Video Card: Plan to get two video cards (8GB or 12 GB) soon
Storage: Two NVMe SSD. Both work at advertised speeds after installing Samsung drivers
RAM: Initially, tried the CMD32GX4M2C3200C16. Windows 10 worked well at 2666. Returned it because (a) I read only Samsung b-die is stable at 3200 and (b) plan to get low profile RAM
Notes: When installing Windows 10, I disabled IOMMU on the bios Plan to do more tests later