Integrating a solar panel with a Sterling battery to battery charger

[Legwound]

slight hijack

I'm on the cusp of setting up a solar/battery/charging system for my 2010 MB low roof 144 wheelbase Sprinter.

Can someone here point me to a relevant post, web site, or other resource for specing out a proper system.

I have the factory second battery and no clue as to what (if any) protections or other gear comes with the factory dual battery set up.

I plan on run ning a DC fridge of resonable size for two people, an Espar heater, a dc television and likley a laptop as well as interior LED's for general lighting. I'd like to be able to park for several days without charging other than the solar and stored capacity.

Thanks