Bug out on a budget, or, what I am hoping to put together in the next couple of months:
1) Camelback water carrier
2) PURE Hiker (or preferably Katadyn Combi) water filtration system
3) Canteen, cover, and metal canteen cup
4) Survival meal tabs, 15 days worth
5) Windproof, water proof matches (usually wooden matched dipped in parafin) or lighter
6) Emergency thermal blanket
7) A good compass (Silva or Suunto)
8) Military issue shelter half poncho
9) E-tool
10) Swiss Army Knife (Victorinox Tinker is my favorite)
11) K-bar or Buck hunting knife ( or maybe even a REALLY good hatchet. I am leaning more toward the latter)
12) First aid kit, the military kit seems to fit the bill fine.
13) Povidone Iodine (for antiseptic AND water purification)
14) Ok the gun issue. My own logic moves me toward the Savage or EAA rifle/shotgun combo because of the inherent utility for both defense and food procurement. I like the Savage Turkey in .223/12 gauge.
15) One of those camping multi-packs of seasonings (salt, pepper, paprika, etc) because those varmints are gonna need some flavor!
16) Some sort of improvised fishing kit with line, weights, and hooks. I guess that depends on your location.
Theorizing like this is always a lot of fun!