Anytime and thanks!
Two sources of charging is standard IMHO. I've read about overlanders loosing their solar panels to low hanging branches, wires etc... I've been working on an electrical write-up for our blog, been a bit lazy about creating the diagrams. Here's a picture of everything installed in the fridge platform before we added the top and fridge. Some might balk at it all being located at floor level, I can see it all from the jack-knife.
Left to Right:
One dual USB and one 12V outlet above CO/LP Alarm
Blue Sky Solar Boost 3000i MPPT Charge Controller
Tri Metric Battery System Monitor
Blue Sea Systems Automatic Charging Relay Switch
Blue Sea Systems 100A Fuse Block
We spaced them to allow for future expansion if other needs arise or someone invents the next big thing. We also recessed the front panel to give a bit of protection to the surface mounted components, really our toes.
We're planning on going as slow as we can (budget allowing) so maybe we'll be shipping back to Mexico when you are heading South. We might run into DesktoGlory that way depending on timelines.