If no one has mentioned it. If you are packing dehydrated meals, empty them all into one ziplock bag, you can dump half a kilo in carry weight that way. If its three distinct meals-3 bags. Eat your main meal in the morning, if its dehydrated rice, soak overnight, makes it cook very quickly. Carry 'Low-Salt' its a combination of potassium and sodium and almost tastes like salt.
hmmm thats it, you got some dam good advice here. I would say train your distance then your weight, this will give a better idea of the distance you can travel on a good day and when you are 'cream crackered'.
Your plans will probably change when you walk depending on circumstances i.e. weather, landslides, aliens, hangovers, a stinker of a cold.. oh yes where's the DMSO for aches and flu capsules? Under stress and fatigue you get ill quicker, so consdider that option and what your break point is.
oh yes, why distance then weight. With weight you are training your entire system under compression, this increases wear and tear to joints and joint capsules. It can also create short bulky muscles, ideal for weight lifting not walking, etc, etc . Without weight you will lenghten and stretch muscles adding the weight after will increas the bulk. Notice that weight lifters (28kg pack is weight lifting) do not wander round with there weights.. also look for the body belts and blown knees.
Good luck and have fun, sounds like a jim dandy trip.
S:sun: