All of you were lots of help! I disappeared for awhile because, honestly, I needed to back up and learn some basics to even understand some of the terms y’all used. @Steve and MA, that was exactly the info I needed for our rooftop panels; I copied that to Renogy. @mossemi, I wasn’t able to easily access the specs for the rooftop panels without removing the panels - and I didn’t want to do that! @rich.dev, I, too, don’t know why Renogy thought they needed the specs of the rooftop panels.🤔 Their website did reveal, however, that it is no problem connecting two 100 watt suitcases and having the controller on only one.
As @SeaDawg and many others have stated, yep, the polarity on our Zamp port was reversed, and we used an adapter. @jd1923, figuring all this out was quite a challenge, so thanks for the encouragement saying we have a GREAT setup.
In the end, we have the option of using either one or both of our Renogy 100 watt suitcases. I am grateful to @Geronimo John who originally (on a different thread) suggested we purchase two 100w suitcases rather than one heavy and bulky 200w suitcase.
Time to go boondock!