In regard to moisture, I know a few guys that put rice in the plano boxes with the gaskets, and that absorbs the moisture. When I used to use those planos, I would use silica packets that I found online. They were cheap, like a 100 for just a few bucks. You could also "re-charge" them in the oven when they got wet.
Now, I travel light and just bring a couple hooks, some terminal tackle, an iron or 2, and maybe a couple pieces of lead. I put that in a ziplock in my center hatch. About as low tech as possible, but its easy
