That thing will be extremely expensive I guess. And neither CPU nor GPU have that much memory. It's also not a great workstation either - macOS is a lot more comfortable to use.
I miss the time you could go to Apple's website and build the most obscene computer possible. With the M series, all options got a lot more limited. IIRC, an x86 Mac Pro with 1.5 TB of RAM, a big GPU and the two accelerators would yield an eye watering hardware bill.
Now you need to add 8 $5K monitors to get something similarly ludicrous.