Boldlyguessing,
First welcome. You are dealing with such a huge number of things, on top of a major life change with the move, that you must just be gasping for a moment of peace.
I don't have any answers, but I would encourage you to pursue a full battery of tests to try to get a handle on the IQ and also on any LD's and other issues. Don't worry about how the school views her achievement right now - esp. if you think there are LD's involved. I am def. not an expert, but I don't think most of the school assessment instruments are in depth enough to get a handle on this sort of thing.
My instinct is that although the GT program person "gets" gifted, they may not get PG or 2E, so just wait until you can get a really deep assessment. Keep supporting her as best you can. I think others will suggest places for an assessment. You will see more response after the weekend I would guess. You might need to travel to find the right person, but at least you have a couple options in terms of location.
Good luck! Cat