OK, thanks, I was afraid of that.... I figured some kind of large press might be required and I don't have access to one.
What about some sort of shoulder bolt instead of the rivet? So far I haven't found a bolt that would work but it seems possible, right?
Also, does anyone have a source for the larger rollers that exist on the track that holds the glass? I cannot find a source for those rollers and mine are hopelessly shot.