Just touching base on this a day later to see if there are any other takers.
@RobJF you mentioned some others that want to help out and @misteraxyz asked whether they are on the forum. It might be worth asking them to add to this topic so we can contact them to see how we can all work together to fill your shoes.
I will put together a placeholder website with MediaWiki installed in anticipation of starting a transition once we have a final team list.