since you are not to far from Spokane..... go to Interstate battery and get a price quote on the trojan L-16 batteries..... might save a few dollars on shipping them any distance, our cost as a reseller is about half retail cost....
you will need a bank suffiicient enough to keep you going during the shorter winter days, most wind gensets will not provise a large enough supply to keep you charged alone, so have a backup fossil fuel genset available, propane that is wired ion on standby might be considered as well.
I personally would get shed of the idea of using an electric oven on battery power.
On our wireless broadband towers we use 6 6volt, trojan L-16's, an airex wind generator, and 3 120 watt solar panels, backup genset with battery charger for winter use. with no charging at all, one computer tower with a 300 wat power supply lasts just over 3 days running all the time, this is using an invertor, and a couple of 1 watt amplifiers and another couple of self powered radios as well.....
For a house my neighor put in 10 batteries, and a 3 panels, and a genset, and he figures to expand his battery bank and his solar panels as needed, but it just himself and his wife, both retired. It does take alot of getting used to not just flipping on a switch and leaving the room, you have to force yourself into a conservation mode, not because it is a precious resouce, but becuase you want to vaccum, oruse a power tool that requires a higher startup useage.
Off grid is great, even if you forget about the extra problems that occur every once in awhile, cause when the power grid goes down, you still have your lights and your neighbors wonder why they did not get it sooner themselves. Plus side is that some of it is deductable off your taxes, and can be help around tax time.
one other thing, the biggest problem you may encounter is figuring out just what size you need, the answer is you should of goten the next size up, the fixfor it is it is ALL expandable.
William