There are a few items I'd buy at the Supply Shack in-game store but I'm afraid that they're otherwise hidden throughout the game. What Supply Shack items can be found in other parts of the game, and what happens if I purchase the item before I find it? Would I find the money in the chest instead or is the money wasted?
In the case of the Crafting/Enhancement/Refinement Tools, of which I know some are found hidden in the world, what happens if I purchase the item before finding it in a chest? Do I automatically unlock the next highest level of tool, or would I pay full price each time for each tool?