Whole dried bananas. You can pack like 2 dozen in very little space. They keep well and are yummy and high in potassium and complex carbs. Hard dry salamis - take several. Semibitter chocolate block. Whole-food based multivitamin/mineral tablets. That's it for stuff you pack - it's emergency/supplemental sustenance, and the good stuff can be hard to find outside of larger towns. The rest you buy as you go: grape nuts cereal (dense, good slow-burn maltose), milk, pasta, bread, roast chickens, beer, cheese, beer, carrots, fruit, beer, etc.

damn i want to tour the coast again.