sounds like there are some good answers for several of us with the same challenge.  I sent emails to badlands and eberlestock this evening, asking for 15" torso length packs.  I will update this thread with the replies from each mfg...
My wife has a great fitting gregory backpack.  It is burgendy in color so I may just stick with that.  I may be green on western hunting, but I have worn out more than a few backpacks....in my experience, it is hard to suggest a pack for anyone.  I use mountainsmith and an arcteryx.  My wife could not find a pack that she liked from either of those very reputable companies, that make dedicated wome's pack's.  She threw on a gregory Deva, we put 35# of bean bags in it and she wore it around the store for about an hour with a smile..It has served her well...I highly recommend trying on any pack and wearing it with a load in it for a while.  
I will post the replies from Eberlestock and Badlands..
Bryan