Hello David, and welcome to the forum. There will be some experts along presently, I expect.
I’ll give this a ‘bump’ for you.
There are four pages of info on the lathesdotco website, so seem to be a long-lived model – perhaps in several guises? Most certainly a good design/machine.
Perhaps some detail of what you actually need would be good. Pics? There are firms that will cut gears – but they can be pricey. HPC Gears is one option. I doubt many have spare gears ‘knocking about’.
If your machine is running, it might be easier/better to set up and make your own?