Glad she found her bike with your help. Remember that she'll need time to break in her "sit bones" as well as the stock saddle. She and I are about the same weight, and it took me a few weeks of building up mileage before I felt like I was comfortable on the stock saddle on my Specialized Vita (a flat-bar road bike I'd recommend to anyone not ready for drop handlebars).
i damaged the sides of my saddle toppling over on both sides on a charity ride; when I replace it I'll probably go with the same saddle, or a model up. But I may take the opportunity when I go in for a full-on fitting to try some nicer saddles. I agree that getting a fit is a good next step.