Re: I'd like to test one.
128GB of RAM? That's rookie numbers! Current Threadripper motherboards support in the region of 2TB of RAM, that's 256GB per DIMM! Of course, 2TB of RAM is pretty extreme, but 1TB is a nice round number, and give you room for expansion in future ;)
Also, isn't 1TB of NVMe cheaping out a bit? 2TB PCIe 4.0 drives are only a couple of hundred quid, so you might as well get a couple and RAID them!
Playing "lets build a fantasy server" is fun :)
(And most likely, these sort of specs will be in high-end enthusiast builds next year, and be considered middle of the road in five years)