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Assuming you have transportation provided by RCI from MIA to Port Everglades, and the Delta is on time, you will probably get to the pier around 1pm. This allows for luggage claim, boarding buses, etc. You will be at the pier in plenty of time. It is not something to worry about. It is important for you to complete your check-in for the cruise on-line. If you haven't done so, do it now. Then all you will need is to print your "Set Sail Pass" and bring it with you to the pier. You won't need any documents in the booklet if you have the Set Sail Pass - just it, your proof of citizenship, and the payment method you will be using to activate your onboard account.