OK, people are happy to move the other sites to meta-wiki. Does that imply wikimedia.org.za will not be part of single-sign on etc?

The sites have to be updated one way or another, so we will need to work around the unsupported extensions. We can take care of any manual tweaks on our side as long as the hosting infrastructure is taken care of.

Importing the related projects to Meta-Wiki sounds reasonable to me, though I will need to confirm with the rest of the chapter that they are happy with this solution.

It is possible that some extensions are in use, but if they do, part of the migration would be to work around these. We have a volunteer on our side willing to assist with the migration, and I will be able to help to a limited degree as well.