quality thread (OP). I'm srs considering doing the same thing. what you should consider buying:
base layers, mid layer(s),
2 pair of thin cyclist socks - wear one pair until mid day (wash, dry on outside of pack) put on other pair (wear) change into and clean 2nd pair at night
1 pair of wool socks (for the cold)
sleeping pad
https://www.rei.com/product/810386/therm-a-rest-ridgerest-solite-sleeping-paddown insulated sleeping quilt
trail running shoe
insulated parka
bivy?
https://www.rei.com/product/832336/sol-escape-bivythis isnt even taking into account food, a safe spot, emergency medical supplies, water, can opener, leatherman, or w/e you might need. try your best to be prepared for the worst and avoid people as they might try to hurt you or take advantage of you somehow
best of luck lad be safe and have fun
backpack (suspension pack?) + trash compactor bag (to waterproof pack)
poncho and / or waterproof rain jacket
(waterproof?) phone + service
