Shogg has most of crunch finished. Mithral Breastplate costs 10,000 GP so he's going to craft it by himself.
Spoiler: Crafting checks
(1d20+5) vs. DC 15
& again if failed: (1d20+5) vs. DC 15
Edit: success on first attempt, and this even beats the 20 DC for superior / special materials cost. Better than expected!
Edit 2: only ~300 GP left to spend/save. This is going to be one heck of a backstory.