Right, so I took a couple of days off my summer vacation to finish off what I had started when it comes to sorting out self-hosted email & calendars for the entire family. This is what I've done.
I've been keeping myself rather busy over the last week's evenings with various things as I am wrapping my head around exactly how deeply entrenched I have been, and in some cases still am, into some services that devour my personal details. It is eye opening to say the least. Eye watering in some cases.