Decent chance I’ll end up with some solar charging, but 3-ish days without charging or much driving sounds adequate to me. Worst case, I idle the vehicle to charge for a while.
That’s my point, in the event that you are out of options you aren’t going to be able to idle your vehicle and charge with a 5a trickle charger. It would take hours and hours. With a fast DC charger can you can totally do this. Run your truck for 30 min and you can add 10-30% charge back in