Yamaha RM1X Keys in RS-7000

I just started repairing/restoring a Yamaha RS-7000. Does anyone know if the black and white keys of the RM1X will fit in the RS-7000? I’ve found other parts to be interchangeable. Thanks to anyone who reads this and can either confirm or deny.

In looking at the service manuals, they are not the same parts.

Thank you so much for checking! Good call in comparing service manuals.