AARs are simply not that hard to find. So odds are it's around. I've seen AARs made into drag cars with cages and big blocks and OEM drivelines long gone. A car that was club raced (road racing) chances are the OEM engine would have been pulled, and this one was rebuilt so it could have been pulled after it broke. Even if it's not the same VIN, someone with a restoration needs the date coded TA specific stuff. Post the VIN, and it will get plenty of attention.