Spent most of the day un-taggling network cables…but I can now see the light at the end of this very long tunnel.
In case you were wondering the old switches have been divided into two distinct areas, because they are two different physical networks, that will be VLAN-ed on thje new switches. The new switches are installed, and configured, all the VLANs tagged and untagged, so all I have to do tomorrow, is to hopefully connect all the cables back!