Hi
A good place to shop for me is Defender.com There prices are fairly good, great customer service. Some places are cheaper but the have every thing you could want!!! Plus every month they put out a sales flyer.
I installed a windlass on my last boat & this spring I will be adding one to my new one. Money is always a problem!!! It should not cost you more than $625.00
http://www.boatersland.com/v700g.html Plus, another $70 to 100.00 for wire, connectors, sealant.......... Some things you might have on hand. Be sure to use marine grade wire, it is tinned!!!!
Go to Lewmar.com, they have a "how-to" video.
The Fortress anchors are cheaper, by a lot, not as good, BUT more BANG for your buck!!!
Good luck
Paul