Well, wot d'you mean by money changer? Y' mean like a bank?
Can you read and write? Cuz if so I would love t' get some 'elp organizin' a system of payment and auctions for all the fightin' we do in large groups. Maybe we could even figure out some ways t' track the local economy and provide some price mappin' services.
If you're interested I'm sure you know 'ow t' get a hold of me.