canceling a verbal contract

I think you should call her and tell her you cannot afford her prices and see what she says. She might come down, if she doesn't then maybe you know to move on. Good Luck with situation.

You need to explain to her what you just wrote in that last post!!! You know you agreed to the price, but you really can't afford it.
Tell her that you really wanted to go with her because you think she does beautiful work, but you acted on impulse. You and your BMs agree that it's a bit too expensive and see what she does. If she can't sympathize with you, then you should immediately start looking for someone else. This is your day and you should not feel bad about any decisions.
Good Luck!