See if you can find a miter bar with a slide bar too wide for your table slot and have a machinist trim it to fit your slot.
Mike A

That is why I came to this forum to find help with this. I don't know any machinist. Maybe I need to look on another forum.

buy an oversize bar and draw file it to fit.
Or look up machine shops in the yellow pages and find one that wil mill the bar you need.

Where are you located?

Just use wood for the bar.