I wouldn't even think about vehicles and hauling supplies for more that one reason. Too hard to hide and too hard to maintain when it really hits. The very BEST thing you can do is take a hardcore survival course. I did, spent 10 days with an expert and we simply walked into the woods with just what was in our pockets. All food, shelter, ect was found in the wilderness. I also didn't see ham radio in the list. Get licensed so you can get a good radio NOW that can be used to communicate worldwide. Don't think the radios for HF are big mosters. There are units out there that are about as small as transister radio that will pick up just about every broadcast and have batteries that are easily transportable. A wire antenna that can be strung and you have worldwirde comms. In addition, I've modified mine to not only receive government freqs, I can also transmit on them too if needed. Yes, it is legal to modify but if you transmit in any other than an absolute emergency, you're gonna get hammered by the FCC. Of course, after a disaster, it won't matter anyway.