I think I have an old Schwinn vintage girls frame in storage at my sis's down on the south side. If your interested in building it up, let me know and I will retrieve it.
Even better, I have a friend that has a 50cm Raliegh frame w/ a few extras like bottom bracket, seat post, stem and bars that he wants to sell. It is a beautiful frame, Japanese made. I could get you a quote as to what he wants?