ColoYota Expo: swap meet + show and shine. Saturday, May 11 from 10 am - 2 pm Get Details & Register Now!. Only $5 to attend (no additional charge to participate in the swap meet).
Hey Daniel, if that were mine I'd sandblast it and weld on a good size fender washer over the hole where the cracks are, then paint it and put it back in. I have to imagine most used cat brackets will be similarly rusted, even if not cracked. I'll be more than happy to do that for you if you can't source a replacement.