Was going to add this to the original post, but a new one is perhaps more appropriate.
Having been out of circulation for some time, I am now back and able to pick up where I was interrupted some years ago. The medw.co.uk domain has been 'hijacked' in the meantime, but
https://medw.uk/wiki/DivisionMaster is back up and working again.
Current state of play is that I have almost all of the parts I need to produce more units, the only components that are missing are the semiconductors such as the PIC and drivers but they are in stock at the suppliers.
I CAN now pick up repairs on any units that have failed and have a few parts in kits to facilitate that. The one little black hole is that I do not have the PIC programmer to hand at the moment although I am sure I have seen it in passing so it has to be in one of the many boxes I have still to sort.
In addition to Divisionmaster, I also have a stock of spares and new product for the Taig mills and lathes which I'm slowly inventorying and can now also assist with repairs to any CNC kit I have supplied in the past.