These were replaced with a nice brand new cylinder, shoes and the whole system was flushed with new brake fluid by the tester, so we could skip checking and adjusting the brakes for this service as they were already done.
We proceeded the service with the usual items like greasing linkages, oil, and filter change ....
...fuel system check and adjustments..
...and checking the valve clearances. So now the MG is ready again for many sunny drives.