The Ultra Clean gaming computer was built for my customer who wanted a complete Desktop PC for Gaming and Stock Market Analytics for under $2k. The 9700K ensures plenty of power and wouldn't overwhelm the Tower cooler as easily as the 9900K. Plus, who need HT for gaming when you have 8 cores?

Notes on setup:
RAM: XMP profile worked fine, brining timings to 15-15-15-35 @ 3000Mhz
CPU: Set -2 on AVX Offset, which allows the CPU to stay under 90C even in a worse case scenario. Normally hovered in the 70-80C range under full load. Non-AVX workloads stayed under 70C
With these Intel 9xxx chips, do not skimp on the power supply. They can pull nearly double the TDP even at stock settings.
SSD: Actually a 1TB Samsung 860 Evo. We decided against the M.2 drive to keep costs down. For gaming & stocks, the improvement would be negligible. This drive still hits around 50MB/s in 4k random read, so there's plenty of speed.

NOTE: If you actually plan on overclocking this chip to 5+Ghz on all cores, I highly recommend a 140mm Push/Pull Tower Cooler, or better yet, custom Water Cooling loop. I personally avoid water cooling except on extreme builds, as reliability, longevity, and low maintenance are usually my priorities.