I wasn't able to pull this many packs and  WOW TBC Classic Gold be able to manage them, but I do remember farming ZG trash solo on my mage in vanilla and getting decent gold earnings, pulling only a couple of packs at a go and doing it the old fashioned way of kiting blizzards.

Of course, you cannot look to live, everytime somebody came across a technique like this blizz would nerf it. Im talking about the raid farming method to get gold, Blizz has nerfed the method after basically every expansion since  cheap Burning Crusade Classic Gold they found people using this. It would have been feasible back in the day, but not for years.