I know I left the Zone, but I've decided to leave the arranger world as well and go back to synths.
If anyone is interested, my WK-3500 is up for sale. It's in good shape. I bought it from DanO several years ago (it was a floor demo model). There is some wear on the back corners. This is how it was when I bought it from DanO.

I still have the original box as well, if interested just email me.

Squeak