And here is plate for top yoke, ready to be installed. I filled all groves with black paint, then I “brushed” it with 600 grit sandpaper. After this plate was covered with two-component mat varnish. May be I should “brush” aluminum with 400 grit sandpaper to make the effect more explicit under the mat varnish, however this very plate looks great anyway.
And yep, back side is treat as good as front one, even if it wouldn’t be visible once plate is installed.