441s has nmea0183 data output which can be interfaced to the optional accessory cable of the EOL (end of life) GHC20 control head. So if you can find the reactor 40 mechanical/solenoid retrofit kit with the GHC20 then you're in business and just need the octopus drive unit along with the Garmin rudder feedback module. 
If you happen to be interested, I have a virtually brand new octopus drive type T (tilt helm) with the Garmin feedback already installed and a U flex tilt helm attached. Had it installed for about a month before deciding to pull everything out and switch over to hydraulic since I didn't like having the clutch and watching the steering wheel spin, plus with the hydraulic pump being able to be located further in the cockpit my second mate could actually sleep while underway with the pilot going.