We can't forward you missing kuids. That is a violation of the terms and conditions, aka the software license. This is also built-in content or from an Auran/N3V add-on pack.
Since this route is for TS12, you are lucky it loaded at all as there are some things that have changed internally to the files.
Yes, you can delete the asset. Go into Surveyor and run delete missing assets. Unless it's track, it shouldn't cause too much of an issue.
John