Also depending on what you’re looking for, here’s a rebuild kit from Skandix...as you can see it says it fits 240 as well as some 140 and 1800s wth Girling rear calipers. FYI.
https://www.skandix.de/en/spare-parts/brakes/brake-calipers/repair-kit-brake-caliper-boot-rear-axle-for-one-brake-caliper/1015668/
If you’re just looking for the pins, clips and anti-rattle plates, I think this Centric part would be it (just Google for sources):
Centric 117.39007