Everything other than the name of the individual and the text to be read (ABD) are optional. It is far better to do a Reading, even with limited altar items, than to wait until some unknown future eventuality when you might have all the proper equipment.
The birth date and time/location of passing are simply used to help establish contact with the voyager (individual for whom the Reading is being done). These pieces of information are not required. We just find they help in strengthening the connection.