[rsk289]

I'd very much like to fit Koni dampers to my leafspring 289 Kirkham. I've had a look at the Koni website, and sent emails to ask if they make or can supply the correct units, but with no luck and no response.
Does anyone know if these are available for a street 289 and, if so, what the ID or part numbers etc. might be?
Thanks,
Roger