Over 30 days old, I know...sorry but I couldn't resist. I just finished a similar solar system on my 5er with 2 150 watt panels, a Trimetric 2030 and the SC2030. This part of Bob's site gives examples of setups. https://handybobsolar.wordpress.com/2014-solar-ideas-batteries-other-things/ As for his ranting, yeah I don't agree 100% with him but after my experience with the US based RV industry I understand why he is so crotchety. Read his FAQ.