Hello.
I have a Century 3 Autopilot, as removed from our S35. It includes all the parts, brackets and cables. It's a 14V system.
It was removed for an upgrade. We flew the plane a short distance directly to an avionics shop so we didn't use the autopilot. I understand from the prior owner it worked fine.
I have some additional photos available.
$750 plus shipping
Thanks for looking.