I’m out I think fella. Without that little spring I’m assuming that you can’t start it and get a video of it running? The thought of buying an ‘unknown’ from such a distance, with rebuilding of said unknown being so difficult/impossible (I’ve looked for spares for the saw and found precisely none) worries me. Or will the saw run so that you can get a video?
It’s a great price for a great saw so I’m sure you will have no problem selling it to someone more local. If it hangs about though...
Sorry if I’ve inconvenienced you