I'm not 100% sure, but I believe the IMCO setup will allow you you add to your system to go full hydraulic. You will need the helm lines and powersteering pump. Give Imco a call. Yes you do loose the ease of power steering if the motor shuts down, but, you can still maneuver the boat and bring it to a stop. Once you go full hydraulic, you will never owne a boat without it. I would give IMCO a call.
Darrell.