I have many (about 10) dell gen 6 and 7 servers, same timeline / year for Huawei and others. With Netgear and qnap network switches, 1g and 10g respectively.
Individually I'd sell servers at $100 each, switches at $50 and the half rack $300 fujitsu
Servers have at least 64gb of ddr3 or ddr4 and 12-24 CPU cores