Thought I’d just close this with an update. Whilst I’m still looking for distributor counterweights I wanted to get this unit fitted back on the second car so it is able to be started and worked on. A bit of lateral thinking - I mig welded the worn areas on the counterweights and then finished by hand profiling with files. Matched weights and sizes. Refitted and the centrifugal advance works smoothly with no play, no binding. The weights were scrap anyway so nil to lose. Pics here after initial weld and after filing.
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