The gears decide what this machine really costs. Every player knows the recipe, the Level 1 bench is the first you build, and the high quality metal is a few furnace runs, so the bill hinges on where the gears come from. Looted, they are a road run. Crafted, each one wants a Level 3 bench, its own blueprint and a pile of scrap, and the unfolded calculator adds the set up to 300 scrap.
A shop is meant to earn scrap, so do not open it that far in the red. Build it from gears out of crates and recycled junk, and keep crafted gears for the things loot cannot cover.
Weigh it against your doors as well. The gears in one machine would also hang a garage door, and on the first days a loot room without one is the bigger problem. Hang the door, then think about trading.
Questions
Vending Machine ×10: how many resources?
High Quality Metal ×200, Gears ×30.
Which workbench does Vending Machine need?
Workbench level 1.
How long does Vending Machine take to craft?
15 s for one, every step included.
How much scrap does researching Vending Machine take?