It's interesting looking at the breakdown, because in some cases prices are similar, and I think in some other cases, the smart money has changed.
For instance, a really high end motherboard (X570 or threadripper) will still be in the $500 range, but there are now available options going up to $800.
The closest CPU option is 32 cores 3970X TR, but it runs $2000, not the $2400 they spend (again, 2020 dollars)
256GB of DDR4 ECC RAM (instead of 4GB) will cost about $1200, not the $1350 spent.
GPU options, however, will run into $1200 for an RTX 2080 Ti rather than the $800 they spent.
SCSI cards are no longer necessary, as NVME is the smart play, and PCIE 4.0 is the high-end play.
They only spend $600 on the system drive ($827 if you include the controllers), but for a God Box, I'd put in an Optane PCIE card for $1300.
For $1440 in storage drives, you're either looking at dual 4TB SSDs if you want SSD speed, or an external 4-bay NAS with 3 8TB drives.
Optical drives are out, which just leaves backup and case. I know nothing about tape storage, so I won't comment on that, but in the case world, you now have interesting options like the TureMetal UP10 which allow you to run this system entirely fanless, but for somewhere in the $700-$1000 range.