So I just had a thought. It would be slightly challenging, but if Adywan so wished, he could potentially get some guy dressed up as Vader and another guy dressed up as Ben, shoot against greenscreen to comp them into different death star backdrops, using the actors masked out of the original scene for dialogue and close ups (get a couple screens of ben's face to cover the actor's in wider shots) and expand the Ben/Vader duel to sort of move throughout the death star to make it more exciting, epic, and able to stand alongside the other duels of the saga in terms of excitement and scope. Ultimately they would move so that they end up with Ben's death in the same place as the original. It wouldn't be too difficult, just time consuming.