Hi Guys, 
  
This is my first post here  I am an old player and went through all Baldur's Gate, Icewind Dale, Torment and family:) 
  
I have played pillars at Normal level, not finished yet, but kind of randomly. I would like to start it at higher difficulty. 
  
Do I actually need a party made all of members I created as I've read a few times, or can I actually go through it with the NPCs I meet in the game, maybe respeccing them? 
  
Thanks!