I recently tampered with (broke) my very old Singer and as we are limited to one SM shop in the whole of the Province since the Singer man retired, I went looking for support elsewhere and found these people.
I thought they only dealt with sewing machines but it seems they do all sorts of tools and equipment. Had I not been able to reassemble my stupidity they would have mended my machine for a donation to the charity.
The chap I emailed was lovely and even offered to come and collect my machine!
I've had a look around their website
here and they do good work. If anyone has any old unused machines that need a new forever home, there might be similar charities near you.
Check it out. They would be glad of your machines, your money or, better still, your time.