If I were going to do this my concern would more be making sure I knew what veggies were eddible where I was going. Past that I'd do more of a migratory living using a tent that I could line to deal with summer and winter. After that it's more just pack things up on my back go some place, squat for 3 weeks, pack up and move to another location. I'd try and stay near streams and get my protien from fish while grazing on whatever berries and such I can pick up. I hear if you make a tea out of conifer needles you can keep your vitamin C intake up as well. The only other problem, for me, that I can forsee is that I'd get lonely after a while.