DavidM wrote:
How about drilling out the holes then soldering the connector pins on
both sides to remake the electrical connection of the plated hole - or
are these multilayer (ie not just double sided) pcbs?

It's possible - it's only double sided, and there is access to the component
side pins on the R/A connector, though I don't know if I can get a fat
enough bit in to transfer sufficient heat. I'll try.

Theo