I, Gladius

One allowance here buys 4,110 EXP, which places it 6th of the 6 Lv 5 Blacksmith tradecraft leves that record EXP. The best of them, Stainless Chef, returns 5,220 EXP for the same allowance, 27% more.

On whether to wait: the best Lv 10 Blacksmith tradecraft leve returns 13,090 EXP per allowance, 151% more than the best on this rung, while the Lv 1 rung behind tops out at 1,690 EXP.

At Lv 5 this data holds 52 leves paying EXP across 2 categories: the 48 Tradecraft ones average 4,554 EXP per allowance, the 4 Fieldcraft ones 28,481 EXP, which puts this leve 10% below its own category's average.

Gil ranks it differently: 168 gil per allowance is 1st of 6 on the same rung against 6th on EXP, with the best there paying 168 gil.

Viking Sword ×1 is a Lv 7 Blacksmith recipe, 2 steps deep through 2 intermediates, costing 5 units of raw material and 4 crystals.

Handing that in returns 822 EXP and 34 gil for every unit of raw material the order swallows, and the tree needs Blacksmith and Leatherworker.