I have an information pack of Stonefield Truck literature, including the brochure and four orange-coloured, circa A3 sized technical specification sheets, dating from 1979, which were sent to me in mid-January 1980 by the regional Stonefield distributor in South East England. I have recently been transcribing the text and scanning the documents; annotating parts of the transcripts where there are ambiguities or inconsistencies. There is also a post-1985, single-page feature, from a Chinese-products advertising magazine supplement associated with a newspaper of some sort.
I originally requested the information pack from Stonefield in Cumnock, because at the time, I was investigating possible off-road base vehicles for a "go-anywhere" motor-caravan, for long-distance, long-duration tours beyond Europe.