Cards for Neve frame

I have a Neve frame with a 33642 power supply and some 10567 distribution amp cards.  There are several unwired edge connectors and I would like to build some of my own cards to work in the frame.  I need some help locating a source of unpopulated cards with the edge lands.  The cards are 7mm high and have 25 pins on each side -- one position is missing for a keying notch.

Any help will be greatly appreciated!