I know this has been likely asked before, but I've done research and can't seem to find
an answer that allows a non-technical person such as myself to simply do this.
http://bitcoin.stackexchange.com/questions/32628/redeeming-a-raw-transaction-step-by-step-example-required/32695#32695step 14
Is there a script (E.g.python) that I could use to automatically calculate the Z values?
What do you mean by "automatically calculate"?
Who would provide the transaction for a script?
What Z value? There is no value in a Bitcoin transaction or in ECDSA signatures that is called "Z".
ECDSA digest for signing