I did it again last night, full wipe and reload of my server, for two reasons. As last time, one reason was to rejig my storage allowance, but also I wanted to relocate from Virginia, USA to London, UK. In the process, I was allocated a new ip address by Amazon and had to advise my domain name provider (1 and 1). I was pleasantly surprised to see that they updated the global DNS records in about five minutes and not 24-48 hours as I believed this process to take.
I think I’m settled now, with the exception of some tweakage here and there.