OK, I'm sure this will give some people a laugh, but I'm a bit of a tight arse old hillbilly. Besides, I'm retired and have 3 bikes and a pack of dogs to support. 1990 1200 Sporty I bought new, now running points, I've heard some old car points slide straight onto the backing plate and work well. Have heard that Rambler ones do, and old Chevy 250ci sixes as well, but they're only to be found under the back end of rocking horses so does anyone know if 60s Holden ones do?  Or do I have to spend $25 at Repco to check? I know I can pick up Blue Streak ones sold for Harley's for $50 online, but if someone knows of any car crossover parts I would appreciate hearing it. Have not had any luck with Google.

Thanks Pedro, on the strength of that I'll spend the $25 at Ripco and see. Timings not an issue, been running points in it since it cooked the ignition pick up in 2010, and had lots of practice in my misspent youth with BSAs, AJS and a dozen years on Norton's. Got the clear acrylic timing hole plug to let me use a strobe, but also have a little spring loaded tool to lock the Vulcan Engineering centrifugal advance into full advance with the timing marks lined up, radio next to the bike tuned off station, and carefully rotate the points backing plate until the radio clicks as the points just start to open. 

OK, now able to answer my own question  so may as well pass it on.