There is no fee to do this. If an insurance company declares a vehicle non-repairable, it must apply for a non-repairable certificate and submit the vehicles's salvage certificate or title within 15 days of payment of a claim. The insurer must also notify the DMV if an owner keeps a non-repairable vehicle.
Recommended Maximum Number of Users in a Group. For Windows 2000 Active Directory environments, the recommended maximum number of members in a group is 5,000. This recommendation is based on the number of concurrent atomic changes that can be committed in a single database transaction.
I'm not sure what the maximum file name length can be (for ext4), but it's more dependent on the file system, than Linux itself. On FAT32, I think it is 255 characters. You probably don't ever actually need a file name that long.