I just want to say thank you. That classic CS-80 is probably my favorite instrument of all time. It makes me incredibly happy to see people still producing music with the same spirit.
You may know about this already, but there's a small batch / DIY synth called Deckard's Dream[0,1] aimed at recreating the Yamaha CS-80 sound.
[0]: Their website: https://www.deckardsdream.com/build [1]: A nice demo: https://www.youtube.com/watch?v=sP0E8Bx6yu8