Can you run 6.8 on non-appliance hardware? Is Yes, anyone have any experience of doing that?
Software only installs have always been supported. The key is to make sure that you meet or exceed the minimum hardware requirements. From a Tier 3 support perspective I'd make sure you use our free hardening tool to secure your device and I wouldn't add it to your domain. If I had to guess I'd say 20% of the cases that I see are on the customers own hardware.