Just a note, spirits *can* last hundreds of years, but only if they're properly sealed. Oxygen will get the ones which are not, I read that tidbit when this hit the news:
But, the info is not in that specific article.
And for the short-term plan? Figure 2 years of stored goods, especially if you've not gardened before. If the end of the world is a nuclear winter, you're not going to be growing shit for years, even if you do get to a fallout free region.
And yes, I've been thinking about what I'd like to see in this (potential) comic(s). While the original guy doesn't want to show TEOTW - I think each piece of advice, or whatever would be nice to show a different potential EOTW scenario. Then we could get to see mutated rats, and zombies, and hordes of black helicopters. Bang-bang-go-boom! Which is always fun to see in a comic, instead of just humor and pyscho-drama.