Make it more unique - make it a crafting raid!

Full endgame crafting and gathering equip plus food required, just as in raids. People need to gather the mats needed to craft the required items in real time with AoEs regularly forcing you to interrupt your rotation and move, otherwise you die or worse, wipe the raid, so you gotta be quick. Watch the adds! They may not see you using their internal stations to make the craft easier or pillage from their stocks. Naturally, the customer demanding the goods has an enrage timer as well.