After viewing that clip & reading that article those flex panels definitely should work.I was thinking about gluing flexible panels directly to the roof.
https://www.gonewiththewynns.com/flexible-rv-solar-issues-review
Right now in an effort to keep weight down there is no auxillary battery and the truck battery is only source. I had a heavy wet cell in my old campers but for at least this fall I will depend on the Honda.