This analog synth doesn't have sysex abilities but there are modification kits available and today I received one box with two kits:
The AtomaHAWK and HAWK 800 kits.
MIDI and parameter control over the well known Poly-800 hardware hacks such as the 12/24dB filter switch mod, the "Moog Slayer" extreme resonance mod and the "FM-800" which provides DCO filter modulation or quasi FM.
Installing the kits is a job for an advanced technician so I'd better find someone to help me before I brake things.
I'm pretty handy and the explanations look complete, but better to take no riscs I guess ...
After that's done, I hope to get the working parts of Mike's work to get the JSynthLib driver and editor for this analog treasure working.