That girls columbia could be saved. It can be turned into a BMX bike. Add 26 x 1.75 knobby whitewall tires they make overseas, aluminum araya rims, bmx bars and seat, and a skiptooth crank and chain to be retro. It's the new craze over here in California if the bike is only a bare frame that was previously stripped. They are pretty fun to ride. No fenders, no scratches to worry about, no problem. Perfect for the beach or coffee shop run on a sunny day. I built one for myself and i'm currently building a girls hawthorne with the rare curved seat tube for karla. It was the same deal. Bare stripped frame and fork only. Totally rusted. Now it will have new paint, skiptooth chainring and sprocket, and the above listed parts. Another girls bike saved. Especially when the frames are usually scrapped. And your girlfriend will love it considering losing about 25 lbs of sheetmetal on the thing.