My git-svn copy is up to date. Actually, it was up to date all along, I just didn't realize it because I checked history of the local master branch, rather than the remote git-svn tracking branch.
My native SVN clone is still out of date. I couldn't remember the update command at the time the server was first back up. Mind you, I could "git svn dcommit" the git-svn clone to a deployed copy of the SVN clone. That would bring it up to date in native SVN format. It might change a bit of meta data though, but all the file changes will be preserved.
In short, our backups aren't in too bad of a shape right now.