I think if you got a shorter, riser stem and North Roads (Albatross) bars turned with the rise UP that she'd be pretty happy. Lastly, it's kinda extreme, but if she gets longer cranks she can lower her seat and still have optimal leg extension.
If she's tall-ish, around 5'8" she could be comfy with 175s pretty easily. Then she could lower her saddle and feel better about it.
Oh yeah, and check the seatpost out....a 0deg offset post is awesome, and you can slide the saddle all the way forward. On a Volpe I can do that and still be behind KOPS because of the slacker geometry.
I thought about doing this with my Xcheck, but decided I ride too far and too often on it to make it worth it.