Ian,
I was managing a music store during those Disco days, and I had ordered a new top for an older piano. It did come with the curved top, but that was a nightmare for stacking. I became quite comfortable with making my own tone and action mods and except for electronic repair, I think I can take apart and reassemble the entire piano. I love tweaking the harmonics to take out the muddiness that they sometimes had. My Rhodes was always a staple of my sound, as it is today, in digital format!