PC folks, I'm back with another question:

I have a Plex Media Server that's hosting about 10TB worth of content (out of 24TB total capacity) for family and friends. With 4K TVs becoming more common, I am now looking into hosting the media in their full 4K format. Thing is, my server, which is still using an i5-4570 CPU, does not support hardware transcoding of HEVC 10-bit files.

Long story short, can a budget of 15k get me a Kaby Lake CPU and a matching motherboard that can handle up to 32GB of RAM (memory will be purchased separately)?

Recommendations please. I'm open to pre-used gear.