I installed one myself -love it!
I did basically the same as Jon's pics based on some installations I researched on 35.5's in Seattle. I've had the boat 2 yrs (200' of chain then rode) and anchored probably 50 times and LOVE it (first trip: Desolation and up to 100 deep anchorage). The only difference is I used "starboard" plastic product to create a "channel" from the windlass into the locker, and I have a chain "J" hook installed between the stainless bow roller channel and the cleat. Sorry no pic with me as I'm on the road (however, Desolation Sound in TWO weeks!!) This allows you to put it straight into the locker and not be in the way of opening the hatch as in Jon's pics. You have to feed it manually into the locker due to the shallowness of the locker, but I wasn't into building a drop-in box. I did a LOT of research, mostly on these archives and WestMarine has some articles as well online. As usual, all kinds of opinions but I opted for using the starting battery as you have to run the same gauge cable to charge it or power it, so why add a seperate battery? (oh yeah, start batt's are designed for rapid discharge/recharge, house batt's are not) Ran the cables the same as Jon's, but he didn't mention this, but after the salon it's run behind the starboard nav station, thru head, into aft cabin (under berth) and then to battery switch in aft cabin. Plan on 30 hrs labor between you and the person you WILL need to help you run cables for some of it. Hint: mount the up/down deck switches where you can kneel on it while feeding it into the chain locker. Also my windlass (anchorman) came w/ an underrated breaker (50amp)which, once pointed out, the retailer came up w/ a 90amp one per packing list. Read up on the snubbing line -you don't want to destroy your windlass after all the work. Well worth the effort... consider the number of times you weren't 100% happy w/ your anchoring and blew it of because it was too much work to re-do it manually

There's no more peaceful sleep than knowing you're on all-chain rode. Also be prepared to go thru the hoops to replace the bow roller (very custom size, more archives on that but my advice is buy an oversized one and pay to have it ground down) as you'll no doubt increase chain and therefore wear. And hey, if a GIRL can install it... ;-)