I bought one of Pauls reworked pumps for my drag car. Great pumps, Log onto his web site ( in shawnlee28's post ) and read it carefully, the important thing is to get the main oil passages reamed out to get the oil flowing.
Since you have that much money already invested, installing a new pump is always great insurance. And since the BBF's dont have the best oiling, prepairing the block will ensure you not to have oil problems.