Controller swap procedure?

So in the attempt to resolve the zwave performance issues with the HUSBZB-1 controller, I decided to make the switch to an Aeotec Z-Stick 7 (FW 7.18.1). I repaired some of the troubled nodes to this controller and everything is working much faster and more stable.

Now since there’s no official way to do an NVM backup of the HUSBZB-1 (FW:v4.32, SDK:v4.5.0) in HA, what would be the proper procedure in removing all nodes/devices/entities in HA so I can re-pair to the Z-Stick 7? The few devices that I re-paired still have old entities left behind from the HUSBZB-1 controller and I would like to remove them and start from scratch. I have a node export with the names,so I know what needs to be readded.