Okay, at this stage no-one has been able to get back to me about if there is a way to set up a private chat room without a 'proper' chat host, so it looks like we will have to meet in one of the open rooms. That will be okay.. it will just mean that other people can enter the room. I am okay with taking on the role of being the one to politely ask them to leave our chat so we can chat without others in there, but I can't guarantee that others will respect that request.
So unless I hear something in the mean time, the chat will be in one of the open rooms on the chat server here. Just log on to chat and then enter the room that lists any of our names... that is where we will be. (I can't specify a room yet, because I don't know which ones will be empty).
Hopefully we will see some of you at the designated time!