Herman, Supercheap or Repco will have the globes, just take the sample.
Think I got my speedo cable through David Silver?
Not sure on the edging, try a Clark Rubber store (I don’t see one in Mount Gambier, is there something like them down your way?). I was surprised at the range of rubber / moulding / stuff they had. I got some rubber from them and made up a new temp gauge mounting ring.