You will be better off if you have more than what you need. That way you can hand each interviewer a fresh copy of your resume, you will have plenty of the documents they ask for and you will look equal or better than the rest you are interviewing against in the preparedness section.
Follow the directions exactly. The people that interview at airlines get used to doing these things their way and when somebody shows up with something different that is out of the norm, it might not work out well. Let your resume and personality differentiate you from the rest.