Fred, on solar panels and angling at your latitude, for our mobile application this is not ideal. Just put your panel flat on roof of vehicle, the output will not approach its max but todays solar panels are much better at working in less ideal positions. Better to add more panel power than required at a $1 a watt or less then have the drama of shifting panels around. I`ve Sikoflexed my panels direct to canopy fibreglass roof. Simple out of the road and no drama.