particular curtain fabric (Cambuskenneth FK9)

This is a long shot, but I'm looking for fabric in some form (curtains, remnant...) in a pattern called Flora LE in mauve, sold by Dunelm and made by Cleland McIver. This is to match some curtains I bought a few months ago in a charity shop in Stirling. I need a bit more of the same fabric for one window blind. I contacted Dunelm and was told the fabric was discontinued over 5 years ago, and I've contacted the manufacturers too and they don't have it either. It's a floral pattern (wisteria, scabious, anemones etc) in white, purple and green on a light grey background. Here's a photo of part of one of the curtains I have.