It seems you have done what I consider the most important thing...evaluate your likely scenarios and then pick the tools and skills that will help. I would probably add a poncho or large contractor trash bag but otherwise the list is looking good.

You can see my take on urban prep kits in these two articles.


http://outdoors-magazine.com/s_article.php?id_article=171

http://outdoors-magazine.com/s_article.php?id_article=172