Thanks SurferRosa. This tool seems to be what I need to remove the freewheel in it’s entirety. I will trust that it is compatible. I suppose the hub could be adjusted from just one side - and I did do just this. However, I need to get into the drive-side to properly clean and re-grease the bearing.
And thanks to the person who dug out my photos. I thought they had gone into the ether.