I agree with Branson about the overkill of the inverter. The price seems ok, but I think you could do better piecing out parts to suit your needs. The website you listed doesnt list brands or true specs, call first for specifics. Like everything else, there are a lot of worthless Chinese knock-offs out there. Also, many of the name brand panel makers don't warranty their panels when installed on rv's. As to the inverter, think long and hard as to how you will use it and how it will be installed. A permanent install needs wiring and plugs for a dedicated system which wont work unless the inverter is on, or the inverter needs to be a flow-through type that allows the genny or shore power to energize the same circuits. These types are usually converter/charger/inverter combos and replace the factory supplied converter. Otherwise you need seperate circuits or extension cords to keep the inverter power from powering the converter (battery trying to charge itself) or shorting out when AC power is present from genny or shore power.
We have the converter/inverter/charger combo, 3-75 watt panels, and a morningstar dual charger on our Cyclone 3010. Dont know your toys, but with this charger a second line keeps our Teryx charged while it is in the garage.
We have 2 large 6 volt batteries (330 amp hrs). In the winter we usually dont get quite enough charge from our panels to watch dvd's and run the heater when it is cold., but we have more than we need in the summer. Also, the inverter puts out 2000 amps, so we can use our coffeemaker or the microwave without having to crank up the genny everytime. All depends on the sun.
Good luck with your system.