I'm planning on putting some roof racks and solar panels on my van. If I go a 3 bar setup (skipping the mid-back spot), I can ALMOST fit two 200w panels side by side between the largest gap, mounted to the underside of the bars so that I can still use the racks if I need to without removing the panels... But not quite. From the top, it looks like I could just use a couple of rivnuts a little further forward from the existing points - has anybody done this? Does anybody know if there's extra reinforcing or anything special about the existing mount points that I need to be aware of?