Hi guys, Seith
I have the same thing on my boat. I have the starter mounted on an over centre bracket to remove the belt easily when pulling the winch rope out.
16mm cable running through to the car battery via a 50 amp anderson plug. Ive had it for @5 years, wouldn't be without it. Winches up in 10 seconds flat.
Mine cost me $140 to set up, picked up the starter from the scrap yard.
When the boat is towed with someone elses car I have to winch it on by hand, makes me appreciate the power winch more every time i do it.
Once you have one you would neeever go back eh Seith.
I first saw them at Woody Head (North side of Clarence river) every trailer at the ramp had a starter motor on, most were starter and ring gear and a couple were pulley and belt. I went for the pulley and belt because they were quiet.
Regards Wayne
Ps Nice boat there Gary, they sure are a no nonsense boat, see quite a few here in nsw.