That's exactly what you need- - - - -but I don't see a price. If it's over $50.00 or so, the setup I have in mind would be less expensive. That switch is intended to be used for engine starting, which means it probably has a maximum operating cycle of 30 seconds or so. You would probably be better served by just installing a 12 volt marine deep cycle (trolling motor) battery to operate the winch, and using a battery maintainer or a solar panel to keep it charged. How often do you intend to use the winch?
Jerry

"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
Love your enemies and drive 'em nuts!