I have always liked the Ideal line of deck gear.
A 120V windlass is an excellent idea 1/10 the wiring size and with a (rather expensive ) AC motor great starting torque. Plus 120V electric motor will be to a standard size , so repair or repacement is rather easy.
One requirement to properly operate a 120 unit would be a Sine Wave inverter (or an operating noisemaker).
The far more powerfull output of a sine wave inverter will operate any heavy motor (air cond) or even minor motor (reefer) more efficiently.
www.idealwindlass.com/
If its a new instalation , you might find a vertical drum unit more versatile than the horizantal.
Warping into a dock , or using a stiff leg to bring heavy toys aboard , instead of just picking anchors off the bottom.
FF