As for your battery, dont cheap out. Get a deepcell. Optima Yellowtops are ideal for this because it is made for long time power. RedTops are for extra boost while cranking or when needed, yellow's are used for longevity. If you get a regular car battery, it will fail fast. You will be constantly draining it low, and charging then draining low. The thing is every time it drains beyond a certain point, it starts to harm the actual battery plates so when it charges it never gets as full. So then it will get lower the next time you drain it (because it doesnt have as much charge as it did). Then again it will discharge more so get hurt more, and it is sort of an exponential failing. Get a marine battery a.k.a. deep cell.