I'd grab my Wagner's Chemical Technology 1872, a Pocket Ref, a hatchet, my wristwatch (automatic movement, no batteries), my Leatherman, every knife in my kitchen and the entire contents of my medicine cabinet (asprin, alcohol, gauze, etc). That ought to fit in a large backpack. Maybe some nylon rope if I could dig it up fast enough.

Yes this is all stuff in my house at the moment.

If I had more time I'd buy a 9mm revolver, load up a Kindle with reference books from demonoid and start working out.