Hey all I know not help with finding the goat monk tc cards but I farmed amber through elvis(King Parsley) It is still crazy I farmed 40 of them at a time and get 2 to 3 amber each round, but patience is only way to get the amber.
I got three Goat Monk Treasure cards from the infected Villagers. Which I find awesome, since I just started that place yesterday. I'm going to go farm again and hope I can earn more. It probably won't be possible though:(