Don't forget a good first aid kit. If you get hurt ur want a GOOD and STERILE way to treat urself. I'd stash water everwhere I could, non perishble food, weapon (don't know who or what you may run into), whatever spare vehicle fluids you can bring, JB Weld (will patch or reattch anything for a temp fix), tarp (for shade or shelter if needed), portable air compressor and tire sealant.