hi redman,
thanks for the link. I did'nt know its just a simple set screw. I thought there might be a screw with a small lever to easily fix and loose the tremolo.
I had one (its a M5) flying around so put it in already.
With the pickup i didnt mean it's bad quality because of the missing sticker. The material itself feels cheap and its rusting on the bottom.
I removed all parts now and created a wiring plan:

Additonally i cleaned and polished all chrome parts already. i had some Nevrdull and polished everything.
For the coloring i used some finishing polish. it looks very clean now.
Unfortuantely i found a lot of rust below the tremolow, which has burned into the finishing already.
I went ahead and ordered a DP151 in cream color.
I will rewire everything with new cables.
Here i have the next question. Which quality will be best?
braided cables because of flexibility but maybe minimal lowered throughput.
OR
Tin-coated plain copper wires with less flexibility but maybe would start to vibrate?
Does that really matter?
Thanks,
Andre
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Sorry for my english but i'm bavarian! Prost!