Another Solar Install

I did quite a bit of research before I decided how I wanted to set my system up. I read handybobsolar, good information but I realized early on that if I followed everyones good advice, I'd be several thousand dollars into a system that was much more than I needed. I am fully aware of how important it is to monitor the battery voltage, I feel knowing the voltage is sufficient for me, how I get that information is irrelevant to me. As far as the rest of the information, the wife and I are inconsistent at best when it comes to how we use the TC. We have a built-in generator so if the voltage get to a critical level we turn the generator on. No matter how much research I do on how much voltage we actually use there will never be a guarantee of how much voltage we will need on any given trip. For me the 2 extra batteries I plan to add as soon as I recover from the solar cost will do more for us than a monitor on top of the remote meter and if that isn't enough I have the ability to add at least one more 120 watt solar panel