Recommended system specs for a single machine to replace my three machines: unraid box, pfsense, and main desktop

[IMTheNachoMan]

Before anyone calls me out for this, yes, I am posting this in a few places to get a wide spectrum of feedback.

 

Right now I have 3 computers. That's how I have always done it. But I recently learned I can pass-through GPU to a VM which opens up some possibilities. I don't know if I will actually do it but if I did I am trying to figure out what kind of system spec I would need for a single system powerful enough to handle replacing my 3 individual ones. Right now I have:

 

• HP Pro Desk 600 G4
  • Specs:
    • i5-8500
    • 32 GB RAM (max 64)
    • 256 GB NVME (pool)
    • 4 TB HDD (array disk)
  • Use:
    • Unraid
    • Samba storage for my home devices
    • Docker containers (SyncThings and Plex)
    • I have a very small movie library so I don't need a lot of power or storage (as long as I can do HW transcoding)
• HP T730 Thin Client
  • pfSense
• Intel NUC
  • Specs:
    • 6th generation
    • i5-6250U
    • 16 GB RAM
    • 128 GB m.2 for OS
  • Use:
    • Basic web browsing and web development
    • Must drive 3 monitors: 1x DP, and 2x HDMI

 

My thought would be to get one system to run Unraid, with VMs for pfSense and my main desktop with GPU passthrough for the 3 monitors.

 

What kind of computer/system/server spec would I need?

 

Thoughts?