Have done 2 121 interviews and only thing I was asked to give them was copies of last 2 pages. Would stay away from bringing a binder its a bit chincy. You want to stand out from the pack with other attritbutes.. Was one of four outta 17 who was offered the job. Guess it was cause I wore the same color shirt as the chief pilot and I like to hunt. More you talk about things outside of aviation the better. With a huge binder u might be walking into some crazy technical questions about exact flights since you seem to have everything well laid out. Could be wrong tho. Good Luck