I dont agree about the map. Nobody had maps of our west, guys survived it. There's far more needful things,in order to have which I'd cheefully give up a map (and a compass, too). Straight lines rarely mean a bloody thing to a forager. You move along the water or the edges of vegetation changes, along ridges, etc.

the entire 'number of items' thing is bs. the real limitations are fitness, bulk, and weight. I might be able to run with 40 lbs, better than you can with 20 lbs. My 30 items might well have less bulk and weight than your 10 items.