You can make a significant amount of money at the start by just picking up junk from the forest floor, this action doesn't cost anything and you can easily make 5-10 silver per in game day on top of any chests you open or nodes you gather.
The game is still pretty early in development so not all the vendors have been introduced yet as I wished to split them based on region specialities. Some vendors like the Hunter and the Blacksmith have been added recently to cover some of these static stock pools and an Alchemy one will be added next update!