I pulled my ARP pushrod out tonight to look for any signs of damage and the end of the pushrod that rides against the cam's pump lobe was perfectly clean and smooth still. It doesn't appear that this entire topic was an issue.
Just to be on the safe side though, I did replace it with the GM part I referenced earlier.
FYI - Replacing the fuel pump pushrod with the motor installed in the car is a PITA!!! AND, this one sorta PO'ed me, the bolt hole on the front of the block that's supposed to be tapped all the way through the block to hold the pushrod up ISN'T tapped all the way through on 1985+ production (not aftermarket GM) blocks
, or at least it's not on mine.
After fighting with the pushrod for a while, I had to get in my real car and go buy some grease to use to hold the pushrod in.
It's all back together and purring again. Next up, fuel mixture adjustments; this thing is running RICH