You should be able to power-down the NUC boxes and move them to another place. The should power-up and be reconnected using the same addresses they were assigned in the install (at least this works for the 3-node deploy). The procedure to power-up is:

• power-on the jumphost
• Wait for the MAAS UI to be restored at http://192.168.10.3/MAAS
• Via the MAAS Nodes panel (http://192.168.10.3/MAAS/#/nodes), select bootstrap.maas and "Take Action" "Power on"
• Wait for the JuJu UI to be restored at https://192.168.10.20/login/
• Via the MAAS Nodes panel, power on the controller node
• On the jumphost, repeatedly enter the command until you see only "compute1.maas" listed in the output

sudo juju status --format=tabular | grep lost

• Via the MAAS Nodes panel, power on the compute node
• Verify the Horizon UI is active at http://192.168.10.114/admin/ (or the address that applies for your install)
• Verify the DLUX UI is active at http://192.168.10.113:8181/dlux/index.html (or the address that applies for your install)
• SSH into the jumphost (root/Op3nStack) and restart the Foreman VM