A rough price out using new egg/microcenter pricing, substituting a few items where they didn't specify a specific item/brand. I didn't bother trying to figure out what case they used.
This could have been much more expensive. They built it from off-the-shelf parts anyone could get (except for the cost) and listed them which I appreciate. Microcenter/Newegg could put together a bundle as a joke and they'd likely get a few orders.
Of course I don't personally have any use for this but it's good to have an idea what it takes to run the best openweight models in a secure/controlled environment. To get started a single 96GB GPU system is only $16,115. For perspective I spent about $10k (today dollars) for a Toshiba Portege 320CT laptop with as much memory and accessories as I could get in 1998.
Grand total: ~ $41,000
Motherboard https://www.newegg.com/gigabyte-mh53-g40-amd-ryzen-threadrip... $895
CPU https://www.microcenter.com/product/674313/amd-ryzen-threadr... - $3500
Cooler https://www.newegg.com/p/3C6-013W-002G6 $585
RAM https://www.newegg.com/a-tech-256gb/p/1X5-006W-00702 $1600
SSDs https://www.newegg.com/crucial-2tb-t700-nvme/p/N82E168201563... $223 x 4 = $892
GPUs https://www.newegg.com/p/N82E16888892012 - $8295 x 4 = $33,180
Case https://www.newegg.com/fractal-design-atx-full-tower-north-s... $195
Power Supply https://www.newegg.com/thermaltake-toughpower-gf3-series-ps-... - $314