Kevin your no better parking the RV in the shade with the panel mounted to the roof. (LOL!) Actually there was a bit of sun poking out on the panels in that picture just not optimal. As for my power needs its really basic. charge the house batteries and charge a laptop battery. I don't really require TV being we don't have TV at home but once in awhile its nice to pull a movie out of the DVD pile and kill some time. So I need lights, water pump, and maybe some heat in the fall of the year.
I'm really curious of how good your work. I've got a local get with a 26 foot RV with roof mounted solar and his don't work good at all. Being the RV is typically park under a tree in the forest. Boondocking style. That why I went for the stand alone idea. Not to mention the snow factor it would increase snow removal issue.
Personal note: I'm a vehicle mechanic, computer technician, server administrator, Captain of a Fire Station and Search & Rescue. So the RV is the way to escape the daily work load. Boondocking is optimal because there is no internet, no cell service, no TV (over the air), etc. We are on our own. I love it that way no one for miles around. So power requirements are very basic. Also the RV is used mostly weekend warrior style.