They are listed on Trooper's shipset site as being on Kuat Drive Yards, but discontinued. Kuat annoyingly re-did it's site format but dropped most of the available shipsets as "not up again yet" indefinitely.
I probably have them on a CD backup _somewhere_ too. Anyway they were apparently named STYLE003 through STYLE014 (see
http://diesel2035.free.fr/racedir/index2.htm, near the bottom ).
PvK