A net gain of 197g/hour. Counting the green item and the grays, and the extra gold from looting the trogs and the tiny treasure chests, let's be generous and call it 250g/hour.
A net gain of 2614g, or 1307g/hour.
Farm ore, buy cloth.
Then use your excess gold to buy up a Haunted Memento when someone lists it on the AH for a ridiculously low price.