I'm sorry -- been a while since 47 so I am not sure I have a clear sense of what a 47's capabilities are these days.
I would think 1-5 are well within your grasp solo. I cannot remember if 6 or 7 requires you to kill Warden Brulke or however his name is spelled. He is pretty burly for his level.
I am quite confident that at 47 you will have difficulty with stage 8. I think it almost impossible for you to single pull the Chief, and if you can't do that, you will either get a BIG beatdown as you pull all 5-6 mobs or you will risk losing the chief when an npc gets the final hit. That's no fun.