Ok folks. Been working the spreadsheet here is where it stands right now.
Price of parts per conventional board is approximately $26 excluding taxes, fees and shipping,
this includes vishay dales, Nichicon Muze for the big caps, wima for the box caps. The OPA445s are out of stock at Mouser, so this adds $2 per board to get them from DigiKey.
Parts values are the standard values published when the boards were designed.
I have not recently priced the PRP resistor option, but if there is much interest, it can be done, but this adds about $10 per board per my last price check /don't know about availability.
One question is should we order overage on the resistors for better matching, etc?