I fitted a gearbox to my S7 about 20 years ago. This involves replacing the changewheel guard with one of a different shape. The old cover has been sitting in my garage ever since. It is painted in the old grey Myford paint.
If anyone has a good use for it (for example, to replace a damaged cover) they are welcome to have it for free, but collect only please (Bromley, SE London) or drop off somewhere on my travels.
Clearing unwanted items like this out is the only way I can make room for more stuff (ideally, more machinery rather than Andrew's cast-offs!).
David