A vertical shaft windlass is closer to the deck and takes up less room than the horizontal models.
Rope is notorious for not wanting to self-stow below deck. BBB chain self-stows very well, just drops down into a pile. At least in Florida and the Bahamas, a chain rode is needed because it doesn't part when pulled across coral.
I am not sure that the forward battery is worth the trouble and expense on such a small boat as a Marinette. I have about 20' from the batteries to the winch motor, about 40' total run for two conductors. Note that both conductors are 'hot' from the reversing switch to the motor.
Assuming a 100 A circuit and a 1 Volt allowable drop (<10%) then the total allowable resistance in ohms is 1 V / 100 A or 0.01 ohms. Dividing by 40 feet gives .00025 ohms/foot.
Referring to
http://www.geocities.com...t_codes/ABYC_codes.html and looking at the Wire Sizes chart it seems that 4 AWG wire, with 0.2485 ohms/foot, is the right size. It is rated for 160 Amperes.
http://www.skycraftsurpl...IEWPROD&ProdID=1211 is 4 AWG very high quality wire (need to use grommets where it goes through metal bulkheads) for $0.70/foot, or less than $40 delivered. (How am I doing here, Jeff?) They can also probably supply terminals. I would solder them.
If you don't have a reversing relay, you might be able to use
http://www.surpluscenter...12&catname=electric which looks to be as good quality as what the winch guys charge $250 for.
There is a schematic of how mine is wired at
http://www.geocities.com...Wiring_32_Marinette.pdf
1975 32' Flybridge Sedan, twin Perkins 6-354 diesels, 1:1.53 velvetdrives, 16 X 19 props. Merritt Island, Florida