I am hoping someone can advise me on the following issue please. I'm in the process of rebuilding my Vincent Comet (C touring) and cannot seem to find out how the alloy plate (rear footrest mount gearbox side) is mounted. I have a thick and thin alloy circular spacer but they are of different widths. When I stripped the Comet I took dozens of photographs but unfortunately none of them give me a clear picture of the way this is assembled. Also, there appears to be no diagram in the parts catalog associated with this assembly?