The prices I have in mind are five normal nails for one septim, three big one for one septim and four wide headed for one septim. How does that sound?
It'll take more than one chunk of ore to make those nails, and he payed quite well for a single one. 14 septims is as low as the offer will go, if Jack can haggle it down. 














Copper-Silver-Gold
100-10-1250-25-2.52,500-250-2525,000-2,500-250250,000-25,000-2,5002,500,000-250,000-25,000
500-10-12,500-50-525,000-500-50250,000-5000-5002,500,000-50,000-5,000
1,000-10-12,500-25-2.525,000-250-25250,000-2500-2502,500,000-25,000-2500







Sounds plausible!



