Build Specs and cost at the time:
CPU: Intel 10980XE Extreme Edition (18c/36t) –$979
Motherboard: ASUS WS x299 ATX – $594
Ram: 256GB Kingston 8x32GB 2933MHz $975
GPU1: EVGA Nvidia Geforce RTX 3090 FTW 24GB –$1800
GPU2: Nvidia Quadro A4000 16GB – $900
SSD: 1TB Samsung 970, 1TB Samsung 980 Pro – $210, $275
HDD: Seagate 20TB, Seagate 22TB – $574, $525
PSU: Seasonic 1000Watt Prime – $299
Case: Corsair 4000 + Noctua NH-D15 – $120
Primary Display: NEC 17" VGA 1280×1024 – $Free
Secondary Display: LG CX OLED 4k120 HDR – $1800
Keyboard and Mouse: IBM Model M and Logitech Mouseman – $Free
Total: $9061