where do I get a Copper head gasket and Permatex copper spray a gasket for Germany?

Why are you considering going to the unreliable and problematic copper head gasket??

The copper gasket is really just a metal spacer.  It is the type of glue that is put on both sides of the metal spacer that makes it seal or NOT seal.  Copper is not soft enough to be a good gasket material when sandwiched between two soft aluminum surfaces.  A good gasket is usually (almost always) softer than the two surfaces that it is sandwiched between.