If i was u, i would go for a sks, shoots 7.62x39 so the ammo is cheap. it can bring down deer and Elk (at closer ranges) the AP bullets can pierce engine blocks rather easily, no to mention any sort of improvised assault vehicle u could come against (like a tacticle, u know a truck w a gun on it). Relatively light, ive shot my dads since i was 12, standing, kneeling, prone, and bench. 10 round magazine is basic, but u can easily acquire a 30 round box or 75 round drum (detachable or not). easy to maintane, tough, reliable.
For concealed, i would go with a CZ of some kind. cheap, reliable, come in .38 and 9mm.
Just my 2 cents.
