It's nice to know that other scale modellers around the globe use the same technic and materials.
With regards to the scale plans - I bought these way back in the early 80's from David McGregor UK. From what I David actually passed away a few years ago, but his collection of ship plans were passed on to John Lambert. He has his own website as well, so you can easily visit his site and order the scale plans you need. The complete set of the Scharnhorst is made up of four drawings, so you cannot go wrong. If I am not mistaken, he has the scale drawing of the Bismarck and the Graf Spee as well apart form other WW2 German Kriegsmarine vessels.
Horatio, please bear in mind one thing, the drawings are not enough, as these just give you an idea of the scale. But the real details are only found in books and wartime photographs. Some very interesting books which you surely need are as follows:
The German Battleship Scharnhorst, published by Schiffer Military History.
The German Battleships - Volume 1, published by Schiffer Military History.
The German Battleships - Volume 2, published by Schiffer Military History.
Scharnhorst 3D, published by Kagero publishing.
German Naval Guns - Volume 1, published by AJ-press.
German Naval Guns - Volume 2, published by AJ-press.
German Naval Guns - Volume 3, published by AJ-press.
German Naval Guns - Volume 4, pyblished by AJ-press.
The above books can be easily purchased from Amazon.com
Should you need any photos or informatoion regarding a particular section of the ship you are constructing, just tell me what you need, and see what I can find.
Is it possible to post some photos of the model you are constructing? This way I can even give you some hints as well.
As for the Commerce Raiding - Yes by all means let's all the hands on deck, commission the ships and prepare the battle fleet.
Convoy in sight. Man the guns.