Hi Wozza,
The Lucas part number for the points themselves was 470609. The spring blades are 470688. The brass backplates are handed, and are 470914 for anti-clock- (most 2-wheeled applications) and 470913 for clockwise (a few bikes and a lot of cars).
Can't find a part number for any of the various rubber rings/washers for any of the many end covers - presumably because Lucas supplied them with the covers. I often use oil filter sealing rings to make something that fits.
Cheers, Bill