Bosch GB534 points are fitted to loads of late 60's and 70's cars, your local parts place must have them. Nearly any condenser will work since they are nearly always .23 microfad, on my 1st 142 I got when I was young and broke, I used a condenser from a GM-Holden and attached it near the coil and connected it to the - on the coil. I've always found that if your points don't pit much, then you should keep that condenser, even if it is an original. You should be able to get 5000miles minimum out of a points and timing adjustment. 10000 if the condenser is close to ideal.

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69 142S Overdrive + 69 164S Manual