I've got my hands on an old stock reconned Ducellier 2525692b that is visually very similar but the dizzy cap is female rather than male like on the Bosch and they cannot be swapped as they don't fit.
Could I simply get a new set of HT leads with male dizzy cap connectors and fit everything up and it would work? ANother thing I've noticed when I've been looking for bits is that I don't think this car has an RP number, well if it does I cannot see it and I used to think I had good sight!