Haha. This is the way. For real though, just go with what you’re comfortable with in both time and headache. You know UNRAID and it worked for you in the past. Keep that as your prod box and then scrap together a lab, which you already have the makings of. Proxmox is excellent but without two hosts and shared storage it’s not really any net gain for you, it seems, vs running something you are comfortable with (UNRAID).