I am going to start my install on a metal roof(pro panel, mage bracket). I am looking for junction box ideas. I am shooting for something that will be under the array. My roof penetration will be with a Zillarac passthrough to 3/4 EMT conduit ( https://www.zillarac.com/Zilla/2016/11/01/Metal-Roof-Electrical-Adapter ). I plan to use a Dinkle din rail terminal block for my connections. Any suggestions would be appreciated.