Good evening Hugh and welcome back!
Thank you for reaching out to us.
I would love to help you with this topic.
One of the technical challenges I think we’ll have is to merge all of the calendars together when we get ready to merge all the sites. Is there a path or tool to be able to do this easily?
Actually, I believe we have just the thing for you.
You will be able to achieve this using our Event Aggregator service: https://theeventscalendar.com/product/event-aggregator/
This service offers many calendar import options. One of them is to import events from another site using the Events Calendar (as long as they are both using “similar” versions of the Events Calendar).
Let me know if that helps.
Have a great day!
Geoff B.