This is only about $125 off retail, but there's OBO on it GIGABYTE MZ31-AR0 Extended ATX Server Motherboard Socket SP3 | eBay
If you're gonna go EPYC that one also has sfp+ 10G network onboard and you'd use a "P" CPU.
If you're gonna go EPYC that one also has sfp+ 10G network onboard and you'd use a "P" CPU.