Usborne pull back and wind up car books

All well loved books. Busy Santa, tractor, race cars (2), train, and helicopter. They all work well with the exception of the helicopter, it is not pulling back for some reason but no visible issues with the wheels. There is a visible issue with the propellers, two are broken. The train book binding is separating. The tractor boom is missing a few of the cardboards standup pieces, but several are still in tact in the book. The race car has some separation on one page. Can post more pics in a separate listing if needed. Max here was 12. Willing to separate, but would really rather just sell as a bunch. Smoke free home!