FYI, you can visit Dickson's web site and contact them as they can sell you accessories. They have snap caps, leather labels, oil bottles, cleaning rods, cleaning cloths and chamber brushes.
I have purchased several items from them,
Delaney & Sons here in the U.S. may have some items as well. I know they had cleaning cloths and caps.
Last year at the Southern Side by Side they sponsored a Scotish shooting event.
Not telling my score

Mike Proctor