GSB hardware recommendations
See this post
A used super micro dual xeon 2680v2 or 2690v2 server with 256 GB of ram is under the $2000 mark. Note the supplier shown may not have stock.
This is as fast as a Intel I9, but much cheaper. What makes is so much cheaper is DDR3 ram is a fraction of the cost of DDR4 ram
Consider also HP ProLiant DL380p G8 server
Dell Precision T7600 T7610 (workstation) These can come with one or two CPU
Dell Poweredge R720, R620,
IBM x3650 X3550 M4's
A guide for CPU choice is here. Do not use AMD. Its much slower for GSB.