Well Charlie,
You just might be in luck here. Back in the mid 1970's I inherited a Benelux spare parts box. It was a cardboard thing with a bunch of parts in it. Not enough to build a derailleur, but a lot of bits and bobs. Nor a complete shift kit either, but I put all of those bits into a sandwich box that has graced to top of my tool box for close to 35 years. There are two super lever screws, and two 60 lever screws in the box. One right side shift lever, two conical shift washers, one tabbed shift backing plate but no frame stops.There is one of each side rear wheel clamping nuts and a few lock nuts for the axles. And a few odd Items I tossed in the box for myself like a steel chromed Campy pedal dust cap. If you promise to used these parts on a proper build, I will send then to you for cost of shipping and ask for pics of them in use.
Smiles MH It seems I have become a repository for obscure parts, these days.