Just for reference, I have my original Apr 69 rotor. It won't start the bike with the points and just the capacitor or is very hard, however it will roll start. A well charged battery, even 15 years old, will start the bike with the Pazon Sure Fire. I think you said you had a Pazon, I'd try that. I know the rotor on my bike is weak, but with a good battery it shouldn't matter.
It would be interesting to know the compression. As is known, spark, correct timing, enough compression and proper fuel will start the bike. Have you tried starting fluid? Be careful with it though it will blow holes in pistons. I've used in my JD2020 diesel tractor but only with a good battery and the engine cranking.
Also, are you getting 2 compression strokes with your kick start? Mine takes 2 compressions from the kick lever to start, it won't start on the first compression. But it's very consistant, and I'm 180 lbs, but I have to get up on the pegs to push the lever all the way through, I cannot start it off to the side. Being 77 doesn't help, but I started it last week, first try after 2 years. Try avgas or 110LL racing fuel if you can find it. I have a local Sunoco station that sells it, I use it in the 2 stroke machines for yard work. Not sure what's available in EU.
Don't give up, it will happen.