I think your wrong with that Dem.. you can get almost 100 gold from killing a rat so it wouldn't be hard to get that much money.. It's (to me) around 1pound per 100 gold.
Well In response to ya comment Mela
RP wise a rat would not carry like 40 gold *Rat runs about with a bag of gold coin in his mouth*
Or *Rat has huge belly full of gold* Either one sounds stupid, yes game mechanics are there with gold on them .
My point is if you were back in them days 100 gold coins where alot of money if you imagine it as shillings, put it this way npc vendors in the game sell stuff for around the right price, at the end of the day RP is about making a real community not making tones of profit, in example of ingot types prices would vary e.g.
Per armour part /weapon made:Iron- 40 gold pieces
Dull copper: 70 gold
Shadow Iron:100 gold
Copper:140 gold
Apigite: 200 gold
Verite: 300 gold
Valorite: 400 gold
Prices would raise on apigite, verite and valorite due to them having special properties and being a rare metal's .
Repairs should be something cheap like 20 gold pieces or something
Food would be rather cheap like 3 shillings (3 gold coins for bread or something) .
I'd advise to just have a look at certain, NPC vendors in Cove farmers market above bank
Can't say anymore really .