Stomper, do you have a local WOW (Women On Wheels) group nearby? She might be able to get some advice from them. Also here is a blog I frequent once in a great while
http://gearchic.blogspot.com/ Don't know how much networking she could do to get some answers regarding the small hands.
I have small hands, but not as small as my nieces!!! A womens small will fit me, but if your GF hands are as small as my nieces, I can see the problem.
Have you though of youth sizes? Motosports - type shops might have what she needs.
Good luck!!!
GH