Rip Van Winkle,
I redid a Columbia Twosome from the early 60's that I picked up from the orig owner last year in a trade. It had been sitting in a barn since the early 70's and looked nothing like yours, the only new parts that were needed were tires,tubes and reflectors for the wheels and I replaced the seats (the seats came from a his and hers matching ten speeds that I got from the same guy ) which I had in stock. After a complete tear down and cleaning I sold it for $300 on CL to a life guard in Ocean City ,he paid me $50 more then I was asking because of how nice it was and in Nov I received a email from him saying how much he liked it and where ever he went with it people couldn't believe that it was from the 60's because of how clean it was.