We have a Windjammer and have dual 6v batteries on the tongue. We have Solar panels, just not mounted on the roof.
We are still debating rooftop solar but probably not until we upgrade the axles since we are at or slightly above the GAWR on the trailer axles most of the time.
I believe I posted pictures of our tongue mounted batteries in another topic on this forum. http://www.forestriverforums.com/for...ml#post1590437