You can order a 120 - 150 watt solar panel from this place, and install it yourself. It is not all that difficult.
I am sure that the dealership profit will be in the $400 range with what they quoted you. . .
SunElec.com You will also need a controller. If it is a 24 volt nominal panel (39-42 volt open circuit) then you will require a MPPT controller that will put out 12 volts. If you get 12 volt panels then a less expensive PWM controller or MPPT can be used. With the low price of panels today, then PWM is less expensive than installing a additional 100 watt panel.
You can run #10 UV rated grey romex down the refrigerator vent to the controller and that can be in the basement storage, in a closet wall, or anyplace else that you find desirable.
I made mounts from 6" long 2" angle aluminum from Home Depot. Drill three 3/16" holes for #10 screws into the roof and a 5/16" hole for a 1/4" bolt into the solar panel frame. This will also provide the desired 1" - 2" below the panel to circulate air and cool the panels.
Fred.
Money can't buy happiness but somehow it's more comfortable to cry in a
Porsche or Country Coach!
If there's a WILL, I want to be in it!
I havn't been everywhere, but it's on my list.
Kangen.com Alkaline waterEscapees.com