United Solar Ovonic has a stick-on roof mounted solar panel. They are targeted for business and metal roof housing, but the 68 watts panel can be a nice fit for Trailmanor.
http://www.uni-solar.com/interior.asp?id=102
At 9.34' x 15.5" x 0.2", and 8.7 Lbs, it got me measuring the roof of my TM to see how it foots.
If you are considering a solar panel, these look like an easy, and TM friendly install. The Florida distributor states that they have Dade County hurricane approval, meaning that driving down the road at 70 mph will not peel it off your TM's roof. Hurricanes start at 70 mph.
Makes my Kyocera look like a dinosaur.