The KOP is being modeled in Solidworks and put up on
3D Content Central.
You may also find some models of parts that have been in the kit for a few years in the
1323 CAD Library or IGES or STEP files of parts which you can import into Solidworks on
FIRST CAD Library.
You may also be able to import the Pro-E or Inventor KOP models into Soldworks. I have had some success doing this for a few parts.