I was thinking these.
A Browning BAR 30-06 with open sights and some good glass on top and some 10 round mags if can get them still. It'll take care of anything and gives you some distance. Higher capacity rifles sound great, but AKs aren't accurate and ARs aren't as lethal. There are few wounded by a 30-06 stories, for men or beasts.
A 12ga pump I like the looks of the 870, but the 500 Mossberg works better for me, even it's ugly and has a plastic trigger guard.
A Ruger 10/22 or any .22, but most of us have them already.
A Glock 9mm, take your pick there are benefits each and I prefer the 19. It can use both 17 and 19 mags, the 26 may be the best choice, but I don't like the grip too short. I'm a 1911 guy in general, but a glock is a glock, a 1911 is part of a family of related guns and many don't mix well.