Harbor Freight often carries a solar kit that would work well for you.. just remember the panels have to be standing vertical and facing S to be of any use to you in the winter... (vertical to keep the low sun on them and to help keep the snow off of them..)
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