Nice post and respect for the effort, though I would suggest that you should change some details: 
  3 skills can be "tagged" and thus raised to 15 instead of 10 ranks.  
  Conversation-, not play styles, the way you put it makes it the whole thing confusing. Furthermore, the definitions are confusing too: Bourne is professional way to talk to NPCs, not a character with ranks in sneaking.  
  I can't remember exactly, but you can check the customization in the safe house walkthrough.  
  I'd also mention that you can kill almost everyone.  
Again, very nice and respect.