Sankyo CF601 Repair/Sell

[SankyoCF601]

Does anyone know of a shop that can handle repair and/or sell my CF601?
It has a broken arm for a cover that covers a tonehole.
It was inherited from my mother and I don't play it, but, kept it as a keepsake and I think I am now ready to part with it.
Seems like most people are selling a used one around 4,000. But, with this blemish, I think 3,000 seems fair.
Any guidance will be greatly appreciated.
Thanks and regards,
Richard