Vacuum packed meat can be arranged via a good butcher. Always carry 2 days spare food and water. If in trouble help can take a long time coming. We find it helps to pack breakfast items together and evening meal items together. It saves rummaging through boxes in the dark.
Square containers pack easier than round.
Items like flour are best put in 'decor' type containers. Glass is heavy and fragile, try packing sauces etc. A.R.B. do folding plastic crates, they work well but don't settle for the lighter imitations - they break. Water container 20l. to fetch and purify water. Other Items A - Survival.