Maybe I missed something, but talking about spending all this money here and there, why aren't you considering at least a small solar setup? They're pretty cheap now days. I have just 150 watts of panels that keeps my batteries topped off and maintained virtually ALL the time I'm not camping, and keeps up with my occasional weekends off grid easily. Aside from air conditioning or microwave use, it's rare that I use my generator at all. Even when my wasteful kids camped with us, and we didn't have LED lights, etc, we still had plenty of power for a movie every night, above and beyond the daily requirements. My 35 amp WFCO has been more than enough backup. My two 6 volt batteries have thrived this way, and I haven't had to think (or worry) about it very much.