Well I'm glad she's now more comfortable on her bike. Because she's new to road biking it will be quite overwhelming and it will take many hundreds of miles to feel totally in control but I also think newcomers are better off with the saddle as far back as possible until they want it further forward. On my custom bike I have a little OVER 70mm of saddle setback. Thats a tiny bit more than most average sized men have, (55mm to 65mm) is kind of normal and to be honest without that much saddle setback I wouldn't feel comfortable about reaching down to down tube levers either.

The big question is is do the speeds match up on the Sora levers your intending to use with the GF's bike. I think your GF's bike is 7 speed and if you have 8 speed Sora levers they won't match up properly. I used bar end gear levers for many years on an ill fitting road bike and they were OK. I couldn't manage down tube levers either at the time because my saddle was WAY to far forward. This was MANY years ago before I knew anything about bike fit.

I do think she would be better off if you could get the saddle back further however as I stated in a previous post the fact that the cranks are too long for her will start becoming more of an issue as the saddle goes back because it will cause her knee's to rise higher. I guess she just needs to ride it more for a while and when and if she decides road biking is for her you could look at buying the 145mm cranks and a rear set seatpost.

EDIT: Another thing. I know you leveled the saddle from the previous picture you posted but a tiny bit of nose up on the saddle wouldn't be such a bad thing at the moment. It will help to move her weight back and make her feel a little more secure.

Anthony