Hope the LC goes well today.
The worst case scenario is that you have to get a really good pump and express from that side and bottle feed her until:
1) the nipple heals and
2) she stops mangling it (which will most probably happen when she gets a bit bigger and her mouth grows. There are a couple of very determined women here who are expressing long term because their bubs never got the hang of not mangling, but since Grace is doing OK on the other side I think she should get the hang of it pretty well).

And then in a month or so everything hopefully ought to be painless and effective...