ELE Windlass on 37
I installed the Muir 1250 (vertical / below deck motor). I ran 2/0 cable to the pannel. While the compartment between the chain locker and the vbirth is ideal for a battery, I to wanted to minimize weight. Nice windlass but not real happy with the chrome pitting. If you can get the stainless or bronze, I'd go with that. FYI there was...is a used Lighthouse windlass at Bacons in Annapolis for a good price. Probably gone by now but worth a call.
Couple of considerations.
1. Strongly consider a horizontal windlass because the anchor locker is small and if for some reason you ever need to crawl in it, you won't be able to with a vertical. Also, they are easier to service. Cons are the motor is exposed to more moisture and they are chunky looking.
2. If your batteries are in the mid ship compartment (at the mast), add the cut-off at that location and run wire directly to the windlass.
3. 2/0 wire, thermal breakers, lugs, shrink tubbing etc. are expensive. Shop around...on the internet...you can find tinned 2/0 military spec for $6-7/foot compared to the outrageous $13 prices elsewhere.
4. I positioned my foot switches close to the toe rail (one on each side) where the bow railing fastens to the deck. I didn't want them near each other, near the windlass (hate to get my toe caught in a 100 amp motor), or out in the open.
5. I ran cable under the cap rail. Pretty easy access except for lockers. Don't forget to jacket the cable anywhere it can rub against sharp objects. Swim noodles fit perfectly around the cable and can be stuffed under the rail.
6. I used pvc elbows connected to a drain fitting below deck to route chain to a suitable drop point.... still gets hung up though.... 200' of chain plus 250 feet of line so it's a little cramped. Sure would be nice if there was a way to extend the pvc just below the vbirth....maintaining a good gravity drop... to the deeper locker further aft. Doubt it would work but it's fun to dream.