Second, I'm having a hard time NOT being the "fixer". I was so tempted to tell her to hold off getting a job until after November so she could still go with us. On the other hand, I just wish she would say something like "I really want to go to NC. Let's see what WE can do to make that possible."
MCC, I may be a little jaded on this topic, but it sounds like her heart is not really into the trip to NC. I would recommend against her going. Go and enjoy your time with the family. If she goes just because she feels obligated or because you put pressure on her, things will go badly.
We had a family vacation in August to NC. Things weren't going well at the time. W was right in the middle of the A. She was there in body but not mind. Disaster.