RE: Rifle Suggestions
As a lefty I feel I must ask you to check her eye dominance first. If she needs to shoot left handed a RH bolt is still perfectly fine and no problem until you put a scope on it. That problem solves itself also 'cause I'd imagine you'd teach her on iron-sights anyways.
If she does end up being a left hander (or even if she doesn't) have you thought about pumps or levers? I fully agree and understand you not wanting a semi.
I'll give savage a nod for high value/price ratio.