In order to build this MOC, you will need 4 of the new Darktrooper Battle-Pack. Also, you will need all 4 sticker sheets!
After you will finish the MOC, there will be a lot of extra parts. You can either sell them to get around 30% off the cost back or keep them and use for other MOCs. Also, you will end up with 4 Luke Skywalker minifigs. Do not sell them! Every ne who wants a Darktrooper army will dp this, so he will have no value at all. The head can be sold and the robes, hood and cape can be used in order to create different Sith minifigs.
In this MOC I used 4 battle pack, but there can be as many as you want. The hallway can be extended in front or to the sides.