Now I am a little confused.... Diderick "claims" he is in cooperation with the designer. You assert that this is not the case stating "...just because he can not locate the original designer or copyright holder does not give Diderick the right to produce these models at his convenience...".
I am sure there is more history here than I am aware of... In any case, the designer clearly states now, that Diderick does NOT have permission to sell his work. If Diderick's claim that he is in cooperation with Rupert is not true, then I understand why he is making his point on the forum. I despise piracy myself. My apologies to Rupert.
Ken