2002 Polaris 250 ATV flywheel magnet?

I have a 2002 Polaris Trail Blazer Or Trail Boss 250. The gentleman repairing it said that one of the magnets on the back of the flywheel is broken and must be replaced. I can get another flywheel if necessary but find that they are pretty expensive, even used. The repair man suggested I try and find just the one magnet that is needed. Does anyone know where I might be able to find just the magnet? If not the magnet, does anyone have a used flywheel for sale at a good price?

If you can help I would really appreciate ant feedback.

Thank you!