Key replacement for old Yamaha CVP-s

by Aron
(Austria)

I own a Yamaha CVP-87a produced around 1993. I need to replace a few keys, but I was unable to find anybody selling keys for pre-1998 Clavinovas, including on Ebay (ex. "These keys fit most Yamaha Clavinova models or P series digital pianos from 1998 onward which includes models with GH and GHD keyboard assemblies present. They do not fit AE and AEII keyboard assemblies from Yamaha models built before these dates" - one seller from Ebay, with keys for CVP-92 and upwards).

Do you know any place/website with keys for older DP-s? (again, I own a CVP-87a)