A couple of stash yips from me, who spent most of the game in misery hunting stashes, remember that barge you go to to help either the stalkers or bandits? CRAWLING in stashes, 6-7 if I remember correct, including a max grade repair kit, shitloads of repair parts, and 4000 RU worth of vendor trash. Also, try to get on top of the gas station. There is a gun up there that will make you weep at the early game utility and ability to carry you through a decent chunk of the game.