There should be no manners or should wait and get ready.Should prepare the documents in order and in a job interview. And you can see the availability, and your intention.
Should have behaved or should wait and prepare this important document should be prepared for convenient and accurate for the interview and I could see the readiness and willingness of you.
There should be a manner or should wait and prepare more should prepare the documents to conveniently and correctly in the job interview. and can let him see the readiness and your intentions.