I finally switched off my old CrystalTech dedicated server today. It’s now around 5 years old so it had to go.
Everything is now on my new server at Dedipower in the UK. It took around 3 months (as predicted) to gradually transfer everything over.
Next time I think I’ll try to find some faster means of upgrading the server. Maybe just see if it’s possible to clone the whole disk and move it into newer hardware.