Why do you want to take a relatively simple mechanical system with some needed feed back and replace it with a relatively expensive numb system that is difficult repair?? A wheel
pilot would be an easy addition that should work on your boat. Took me a couple of hours to install the one on my boat and I just had to flip a lever and turn it on to steer the boat. If you have something against the one's available from the big guys, CPT makes a simple pilot that has plenty of power for almost any boat.
Then of course there's the question of why a wheel on such a small boat.