I fired up the simulator to solve this. Best strategy is Double Witch + 1 Moat. Open Silver/Moat or Witch/Moat. Buy the first Witch over Gold. Then just get Money.
Adding Poacher(s) is terrible, plummeting the win rate to 41%.
Adding Markets drops the win rate by 1%.
Interestingly in a 4-player game the optimal strategies change. If 3 players play Witch you should not buy Witch, just Moats. If 2 players play Witch then they win against 2 Moat players. And 1 Witch crushes 3 Moat players.