I have amber, but can't find gold anywhere. Gold jewellery doesn't seem to work. The quest notes say that I can get it from a special merchant. I think I traded with all minor factions merchants and none of them had gold. I also completed a quest for a merchant from a tavern, but didn't get any gold into my inventory. I travelled a lot since taking the quest, and there was no random event that gave me an option to get it. Where should I look for the special merchant?