Just to close this thread, I never found some for sale, I bought a £10 clear set on Amazon meant for a transit and sprayed them with black out tint, look quite good.
Oo, I always wanted the clear side repeaters with silver bulbs that went orange when the indicators were on as I have a moondust Puma.
Haven't got round to that yet!
I have managed to collect a blue set, smoked set and a clear set over the years. They seem to be getting pretty scarce now, I haven’t seen a set come up for ages.