I'll be flipping the switch to the new server shortly. Looks like everything is primed and ready. I've not done this move in 2y so there may be something I forgot but AFAIK, it should be fairly smooth. The longest process will be performing the DB backup after the live server shuts down, moving and importing it and then waiting for the IP block to get moved to the new server which in the past takes 4-5 mins.
Upgrade completed. Downtime was ~15m at most. Any issues you see that are new let me know.
Cheers