I like the Idea. The small chance to drop the recipe would keep the component active and repeatable. Of course it would have to be on a timer, which would cause more pvp due to factions trying to be the one that attacks the boss. Maybe not take it to embargo chest, but to a free city Sacrifice God Pit for that faction. Once the Item was sacrificed it could pop a toast message. Or some designated area that would allow the transport party to be attacked on the way.