Rob,
There's a couple sites who claim to either have the Rigida/Ryde Andra 30CSS rims in 26in/32 hole, though I don't know if they have Rohloff-specific drilling.
One source accepting inquiries is ROTOR in Lipzig, Germany, but the listed price is dear at 129,00€ each including local VAT...
https://www.rotorbikes.com/produkt/ryde-andra-30-css-26-36-loch/The other source is the always handy BikeStation in Finland, though their site currently has problems loading. You may wish to contact them by phone or mail at...
Bike Station Finland
Asemantie 5, 31640 Humppila, Finland
+358 44 3244010
I don't have an email for them and fear they may no longer be in business....
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Standard Ryde Andra 30s are still available from a number sources and can provide satisfactory braking in most conditions and last a long time when used with Kool-Stop Salmon brake pads. I've been very pleased with this combo on three of my bikes.
Best, Dan.