Ooof. Well, then, I will stop pining about the '65 Super Sports that got away last month.
If you ditch the One Piece Crankset and the Schwinn Approved derailleurs you can shave quite a bit of weight off. I built a '72 for my old man and its a great rider. Its definitely no featherweight but it is fun to ride and its lighter than a varsity (which doesn't say much I know) but still heavier than something like a Super Course.