via this auction

I suspect it's a modern (2000's era) interface because the note timing is very good.. 80s retrofits sometimes had slow CPUs and this is most certainly not a problem here, you'll be able to get immediate response and tight rhythms.
The synth itself sounds absolutely superb, there's some aging and nicks on the wood (see photos), and chip on back bottom of wood. and one small scratch on one key, so not "mint", but certainly 100% ready to play, the MIDI helps integrate it into modern studios."