Yes they are made in Germany. I purchased all 3 of my hulls (2 of 3 made of carbon fiber) from Andy the actual builder about 2yrs ago. Not sure if he is still making them since it was only a side project for him while he was not working. You can try contact Jorg Sentker at
http://www.e-powerboat.de/ I have one with twin engines also.Here are a few pics of my other one.