So here are a few photos of how i did the colors. Thanks to @fiveten tip for the Mr.Hobby Nr.61 color i used the amber grey and J3 grey from AK and mixed them together with white.

Pretty happy with the look, however the peddinghaus decals turned out to be too difficult for me. They have a film going over the entire decal sheet and one has to be super extra mega careful when cutting it out and above all applying it. I used Decal Soft from Revell and they still wouldn't settle down. Even worse, the blue ribbon would not match across the fuselage. And trust me, i tried for over an hour.

Oh well, one for the bin or maybe i will get some spares out of it. But i would like to thank everyone in here who was so quick to help me regarding the colors: @mvtb, @fiveten, @holzhamer, @johnb and @lis.

I would definitely welcome some kind of a decal producers list, as a beginner i would benefit from that tremendously.

2 attached images. Click to enlarge.

Don't bin it, my friend @fxrob! If you are not happy with the decals, keep it until some nice decals come handy!

@fxrob, overlooked the message that you were thinking about binning it.
Like Spiros @fiveten mentioned, don't do that. Removing the current ones and add new ones is absolutely worth the try.
As mentioned in my previous post, the build itself does look nice, so better to keep it.

C35 it is not best shade of early IJN Gray. This is late color. I suggest my mix of paints.