I have a Sayes Rig Wind Vane Self Steering unit I am giving away. It needs some work and the steel head unit copy rebuilt in stainless. It has come off a Van De Stadt 34 so if you have one of those or a similar transom the mounting frame is also useful.
The instruction brochure comes with it.
Freight cost via Fast Way Couriers will be about $75 to $100.
There were a couple of guys on the forum interested but they never got back to me.
Total weight is about 37kg. First to reply on this thread has first option.
I don't think it would be suitable for anything less than a 30 footer.