Tom,
Get a large ice chest the buy a lot of the cheap drinking water, like that you can buy from SAMS or WALMART, freeze the water in the bottles, then cook and freeze foods that you can eat when it thaws out. The lower you pack it in the chest the later it will be available for you. When the water thaws out you will have your drinking water back. Buy a pressed ham and have it sliced to make sandwiches, or what eva. Pack the frozen food on the bottom, and put the refridgerated food on the top. No need to eat LRRPS when you can plan your meals in advance. Cook them too. What do you like to eat?

Dave