Start a new game. Enable the CLUAConsole:SetCurrentXP("89000") to level up and equip yourself with the desired armor and weapons. Do the sub-quests then talk to Gorion. Go through the scene where he dies. Return to Candlekeep. The man at the gate will not let you in without a book. Enable the the Cheats:ExploreArea() and CLUAConsole:EnableCheatKeys() codes and have your characters go within Candlekeep's gates, Press [Ctrl] + J to jump in. You have now skipped the Iron Throne part of the game.