I need to recreate the whole Five Tenets system from Oblivion in Skyrim, but I have no idea what I'm doing here when it comes to papyrus. I've tried and I just have no business in this area. Can someone help me out here please?

Just a basic rundown of what I need:

• Player kills, or steals from a member of the Dark Brotherhood while being in the Dark Brotherhood.
  
  
• Player is exiled from the Dark brotherhood.
  
  
• Player sleeps and is attacked by a creature known as Wrath of Sithis.
  
  
• Player kills Wrath of Sithis.
  
  
• Player is accepted back into the Dark Brotherhood.

This is a crucial part of my mod and the whole thing would really be a bust without it, so if someone could help me with this... that would be really great.