I was just watching Wheeler Dealers where they did up an Alfasud.
It has the handbrake activating the FRONT disc brakes.
There is a cam operated lever operated by the handbrake cable that pushes the pads onto the disc, with a 0.1mm clearance from the lever to the pad.
1970's design!
So.....no excuses for not knowing about the issues and a simple solution applied to the rear discs.
Come on Morgan!

Send for Ed China.