Thank you for requesting me.
I am not clear on your question.
When you file the I-130/485/765/131 concurrently you only send one set of the supporting documents.
In other words, you do not have a send a birth certificate for the I-130 and another birth certificate for the I-485.
Does that help answer your question. What threw me off was your statement:
"when i already have to use these as part of i 130?".
That confused me that you had filed the I-130 independently without the I-485. But then you used the word concurrent so I was uncleaar.
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