A couple of things you may want to be careful about --

1.
Pearl grips (aka by S&W as "stocks") are notoriously fragile. Of course, they can be damaged if not carefully removed too, so make sure you know what you're doing. I think there is a "sticky" that talks about removing stocks. If you are going to shoot it much, you may want to get some inexpensive rubber grips. If you ask nicely, somebody here can probably send you a set gratis.

2.
"Loaning" a gun may have legal ramifications. I know it does in my state. Your GF may be better off all the way around to just go out and buy something that suits her needs.

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