My homelab is aging a bit. I'm in the process of refreshing the hardware.
HP DL360 G6
IBM xSeries x3650 M3
Synology NAS
Juniper EX2500 10G switch
Cisco 4948-10GE switch
Cisco 3750G PoE switch
5x Raspberry Pi 3's
And most of it is all switched off because the electricity bill every 3 months was...
I would strongly suggest you use fibre instead of copper.
If you run copper, you're going to create a big antenna, and you're going to be replacing switches/devices on either end of that cable run ever time there's a lightening storm (I speak from experience).
A little bit of shameless self-promotion...
I had the honour of being the guest speaker on the ZA Tech Show that was broadcast live today.
http://www.zatechshow.co.za/ for the Show page, but they don't have the recording of todays show up yet.
For now, you can watch the recording at...