Just to make sure you keep everything powered while in storage I would suggest a 135 watt panel ... make sure you have a charge controller that can handle a minimum of 15 amps... go with a bigger charge controller if you can afford it as once you see how great solar is you will want to go 100% solar... You MUST have a charge controller inline otherwise the solar panel will discharge the batteries overnight.
2004 Chev Silverado Duramax optioned past the max. 2009 Jayco Eagle 308 RLS 765 watts of solar, 6-6 volt batteries (696 amp hour), 2000 watt (4000 surge) whole house inverter.
140 days boondocking in 2016
211/2015, 196/14, 247/13, 193/12