Would this machine work well for me?

[Leo_B]

Looking for some advice here on the specs for my NAS. I have an old HP desktop that I bought off a closing business years ago, and I've used it as a simple NAS and Plex server, but it's starting to use its age. I want to upgrade to something more capable, and I would want the machine to do the following:

• Network Shares (obviously)
• Plex (maximum 2-3 concurrent 4k streams, often less)
• Virtual machines for game hosting on demand (Minecraft, obscenely large Factorio worlds, etc.)
• Potentially other self-hosted programs, like Bitwarden later on

I was browsing Craigslist in my area, and I found someone selling their old PC for $300, specs below:

•  Intel Core i7-6700k
•  Corsair Hydro Series H80i GT Performance Liquid CPU Cooler
•  ASRock Z170 Extreme7+
•  32GB G.SKILL Ripjaws 4 DDR4 RAM (4x8GB)
•  500GB HDD (I would install my own drives, of course)
•  EVGA Supernova 1000 G2 PSU

Do you guys think this machine would be qpowerful enough for my use case? Am I overdoing it and a newer prebuilt with a better CPU would be enough? I'm open to any suggestions!

[FlyingPotato_is_taken]

Overpriced for the performance.

A old office PC can be bought with these specs for $100.

[Bersella AI]

This build came from 2016~2017, is also aging, and costs too much due to the power supply, cooler and other stuff bundled.  With $300, it seems feasible to build a brand new platform with a 12th gen Core i3-12100 processor, which would perform much faster than 6700K (benefiting performance in Minecraft) and would not require fancy coolers or power supplies. This processor also integrates a UHD 730 GPU, useful and capable of 3~4 concurrent streams.