Every word is good. Nothing here was new to me, but a reminder does no harm.
He forgot to mention: hit the gym. By the time you haul a view camera and suitable tripod, three or four film holders, meter, dark cloth, two or three lenses, water, and your lunch up a mountain, you'll appreciate every leg press, every mile on the treadmill, every shoulder row. Large format equipment is heavy, and anything you carry for more than a hundred meters gains weight with every step.