Unfortunately you’ve got a collector quality piece of an era and manufacturer that nobody really collects. You may be able to find someone who’s interested in it as a display piece, but even then I would not expect anything more than the $500 range. It’s unusual to find this era with the paperwork in good condition and it’s in great shape so that’s something, but to most collectors this would be something that takes up space they would rather have devoted to something else. Good luck finding the right buyer!