You can get a 12 volt solar setup without spending $435. My God, that's a mondo ripoff. A quick Ebay search - 20 - 40 bucks. Use the car mini 12 volt charger and some creative wiring to a 12 volt receptacle and you are in. The Halo 12 volt mini charger is rated at 12 - 24 volts to 5 volt @ 1 amp. Seeing as how the charger will handle up to 24 volts, you won't need a separate charge controller. '12 volt' solar panels can reach 18 volts or higher in bright sun, that's why they need separate controllers. The car charger seems to be a regulated 5 volt step down linear power supply (I noticed it gets a little warm with the truck charging at 14.7 volts, runs cooler at rest). You would need a 10 watt panel, maybe get away with 8 watts (it is rated at 5 watts - 5v @1amp). The only downfall would be the size, they are not tiny, and you would look kinda silly walking down the street. It would be great for camping/hiking/hunting/fishing/outdoor no grid activities though. It would be even cooler if you could find one the size of the case and make it part of the case.
The more expensive panels are already wired, charge controlled, and waterproof. For 400 extra bucks I think you can come up with something.
For power failures, a simple 12 volt receptacle with alligator clips, the car charger, and a charged up 12 volt battery would suffice. Or, just charge em in your car.
dns