Galleass Wheel

Taken all the way down to base materials, one Galleass Wheel is 3 crafting steps deep and needs 4 intermediates — Iron Ingot ×3, Steel Ingot ×3, Steel Rivets ×2 and 1 other — which resolve to 3 distinct raw materials totalling 24 units, plus 24 crystals.

That bill outweighs 8,926 of the 13,602 recipes tracked here and 1,021 of the 1,932 Blacksmith ones, and 337 recipes nest deeper.

Only 5 of those crystals go into the final step; the other 19 are burned by the intermediates, so the real crystal cost is 18 Fire Shard, 4 Wind Shard and 2 Earth Shard.

The chain crosses two disciplines — Blacksmith to Lv 29 and Carpenter to Lv 25 — so no single class can finish it unaided.

One intermediate outranks the result: Steel Rivets is a Lv 29 Blacksmith recipe feeding a Lv 27 craft, so that step, not the last one, is the real gate.

All 3 raw materials are gathered, and not one of their spots is timed, so nothing in the tree waits on the Eorzean clock.