I recommend going to Freeze Dry Guy's website: http://www.freezedryguy.com/ There you'l find an article regarding a packing list for use with the US Army's now retired ALICE pack, one of the best rucksacks EVER made !
When the poop hits the blade it won't matter how you "look". The best priced and most effective equipment for a survival circumstance, in my opinion, is military equipment. Supplement your base military equipment with various civilian camping items and you have the best of both worlds.
Just remember....you can't take everything. Three essentials....security (a weapon), water, and food. After that everything else is extra !
Again, go to this site: http://www.freezedryguy.com/ and you'll find a wealth of experience on BoB's and other issues of existing after the balloon goes up !