In case it helps someone else with this.
As far as I can glean, this is what is needed.
I scratched up the required part numbers. The quote is from the Comnav rep.
In some of their manuals it implies that a differently branded fluxgate compass may work, but this rep certainly didn’t seem to think so, unfortunately.
I doubt the rudder feedback gear needs to be brand specific.
When all is said and done with exchange and shipping to Canada and the parts-wrangling involved, I think, sadly, it would cost me almost as much as a new one. Unless some unexpected angle presents itself soon. Bummer. But thanks for answering my questions Peter.
“ The 1001 system will interface with any pump ( DC reversing pump either 12 volts or 24volts, using the CT2 drive box)
For the pump, it has to have the right flow and this is determined by knowing the steering cylinder size of your steering system.
As for compass, you need a ComNav fluxgate compass, not any fluxgate compass to work. You can also add a magnetic compass sensor if you have good working steering compass.”
Part # 20320004
Or- Bottom Mount 12KHZ Magnetic Compass Sensor Part # 30320002
Medium Duty Rudder Follower
Part # 20330008
Rudder Feedback linkage
Part # 20330007