I haven't purchased panels yet. As this is a PUP, the batteries are on the tongue of the trailer, and I've moved all the electrical components to the inside, including the BVM, MPPT, Inverter etc. I have an SAE charge port on the outside that leads to the "guts" inside. Because of this, I'd like to keep with a simple single SCC configuration. The batteries are well secured and not easily accessible.
I think I'll get a bigger panel for the roof and use that solely for days when I'm not in complete shade. If I'm under a tree (as we often are) I'll just opt for the suitcase assuming I can chase the sun.
The goal with the bigger roof top panel was to get as much power as I could on the cloudier days.
I understand the complexities of the panel matching given my situation.
2021 Ram 1500 Limited 5.7 Hemi e-Torque 3.92