Ignore the tile that names metal fragments the main resource. Fifteen frags is a corner of one furnace load. What matters is the leather and the sewing kit, and both have other buyers in the same week.
Leather comes from hunting, and the road sign jacket asks exactly as much as a pair of boots, with the kilt and gloves lining up behind it. So when the group comes back from a hunt, split the pile before anyone queues: road sign pieces first, boots from what is left. The kit goes the same way, since before Level 3 every one is road loot.
The blueprint sits at a Level 2 workbench next to the road sign pieces, so learn them all in one visit to the research table.
Questions
Boots ×10: how many resources?
Metal Fragments ×150, Leather ×200, Sewing Kit ×10.
