I think making palpy’s last line “you are nothing, a scavenger girl …” Would be the best option, but putting the I am all the sith line at the front doesn’t really feel right as it does feel like it belongs at the end, but that might just be because I’ve heard the original so many times. What if you just removed the I am all the sith line, or at least moved it to a different scene to keep the evil spirit thing intact? I guess it would take a little away from that final scene but it might sound better. If not then I agree that ending with you are nothing makes more sense for Rey’s response.