I hope to stay in place but if I have to leave I have a 3 day pack. I can add on a larger one for 5-7 days and a long term rolling duffel if LONG term. Ocean shore is limiting in escape routes. Few duplicate items. Extra food, batteries, more rope etc is added right up to the small tent. Dog food is heavier than mine. Any suggestions?
I do4X a year updates to supplies.
Have you considered a native American travois (drag cart of lashed together wooden poles),
or a modified child's wagon similar to the bicycle "tow behind" ?
The wagon is ideal for level and asphalt surfaces; the travois can and has been used for rough and unfinished surfaces.
Selection of which woods to use for the travois might best be found in research at a library, or native American reservation.
This way the dog is responsible for transporting it's own supplies.
If travel is by waterway, don't forget to have a life preserver for your best friend/ nighttime sentry.("Woof")