I think it sounds fine. It sounds like she has a lot of experience with SI and that will really be helpful. I think the only problem might be if she suggests different approaches to dealing with your SI than your current T advocates, and that confuses you as to what you should be doing. But hopefully that will not happen, and if it does, you can talk about it with the Ts. I would suggest just making sure each T knows about the other one, and perhaps they might like to speak to each other to make sure there are no conflicts (if you allow this, of course).

As to what you should do, since the group is not available this term, the only choices are do individual with the campus T or don't. In either case, can you get on the waiting list for the group for next term? And maybe someone will drop this term and you could take their place.

I think it's really good that you will have some support closer to where you are living now.