All sorted, thanks for all help.
Since my last comment I had to change my focus to getting my EH Holden Special ready to drive down to country Victoria for a friends wedding.
In a last ditched effort to find the problem I ended up pulling the dizy apart in situ to test and asses individual components. I found that the ignition pick up was in fact out of spec resistance wise and the friction springs in the base plate were broken as well as some average wires I missed the first time.
I found a used genuine distributor at a wreckers interstate and it’s solved the problem and it came with the remote mounted amplifier set up as well.
My other options were limited to replacement britpart dizy, get another powerspark dizy, some other unknown brand pick up or a scorcher dizy. The Scorcher option is still one I’m open to for the future.
I’ve found a few other parts that will need attention in the future.
The one good thing that can out of this saga is the fact that I got to enjoy a bit more use of my EH Holden and Series 3 Lightweight.