Pluto,
great find, you can sell your chain ring, wheels, seat and chain guard and you may be able to fund most of the missing main bike parts if you do some research.
Try the thecabe.com or ratrodbikes.comfor selling the parts. Do some research and you can find those types of parts sell for decent prices. The stock cloverleaf chainring is really easy to find cheap and in good condition. Please rear the rest of the thread to find out about what springer to get and all the other details. Good luck.