There's a lot of options....
you could actually mount a battery in the bow (if there's a place for it) and save a LOT of money and difficulty running wires from the stern to the bow. Since a windlass tends to be used once or twice and then sits for hours, days or even weeks, you could mount a solar panel at the bow to recharge the battery, or run much smaller wires from your DC charging system to the battery at the bow. Wires to carry 60-100 amps with acceptable voltage loss are going to be MUCH larger than ones to carry 10 or 20 amps up to that battery to charge it. Cheaper, too.I've pulled enough large DC wire - up to 500mcm - to appreciate the flexibility and ease of handling of welding wire. It's more expensive, however, and you have to be very careful with it, because those tiny little wires (they're like 30awg or smaller) can start breaking, and when they do, your current capacity goes down.Keep looking, keep thinking, there's lots of ways to skin this cat.

Cheers,Bobs/v X SAIL R 8