I have been following these posts... what a wonderful person you are to help this poor girl out through such a traumatic event for the both of you.
I have a question for all of you, since she states that the beak looks like it is smoothing out do you think that this beak will regrow?
Anyway...
I don't know if this is at all possible, but what about using some modeling clay that dries hard? You might have to do a little at a time and build off of it. Sorry to hear about what happened......