Several months ago, there was lengthy thread about fitting an autopilot to a Horizon cat. The conclusion was it can be done by fitting a Raymarine Sportpilot. They do sell new for about $1500 and that is a lot of money for a small boat. I was lucky to find a complete used unit on eBay some months ago for $900 - Now, if you hurry-up, there is a used unit on eBay that is currently at $450 - search for item 220764530291
Cheers,
Ronald
Somebody got lucky and got it all for $611
Is that you?
:-)