it was ~1100 for the cpu and motherboard.Seems like quite an expensive option. Do you really need such a strong platform?
have you considered power cost of running this platform 24/7? Perhaps you need a simple nas with low power and a second system for hedt with plenty of memory and pcie lanes. You turn on hedt system only when you need it.
Also not clear if you need ipmi. Ipmi is 10+ watt.
the power usage on that epyc is only 155w tdp, so not horrible at all