Made a mirror of the mesh and unwraped it at 40 deegress with some island (0.2) just to be sure.
after that unchecked average normals and used Front 0.01 [lower result where cleaner but also the HighPoly Details started to Fade] with somewhat nice looking normals. Also BACK 0.02 to get some more detail, Also x8 Antialiasing. After that i must say the result was quite acceptable! :-)
Although the results where quite good, on some of my hard "edges" i got some a bit noisy beveling... , and also i dont know if when i put much detail, if with this setting will they be baked correctly...
Anyway i will post if i have any issues :-)
THANKS mik1190 :-)