Something that can permanently disfigure, has the potential to go wrong, and is life changing (good or bad) is something that her parents should be dealing with, or getting funded by her.
Elective surgery is a luxury that comes with alot of responsibilities. I wouldn't want to be the one who funded it if she ends up with a uni-boob, sick from the silicone, or hating it because they're too big and no one takes her seriously anymore.
So no, I wouldn't give it another thought. I would however, tell her she needs to get her priorities straight. For that kind of money, perhaps she should be looking at a graduate degree, a wedding gown, or paying off some loans or a downpayment for her first house. Anything but that. She's probably already beautiful. She just has to believe it and find more worthwhile projects.