Eco 1 and 2 might not be the best options as you limit yourself to a single side of the pcb (they are unspecified for the flip operation which is why they are not suggested for use within footprints).
Also what good is it to duplicate the silk layer. If you use the same info just display that layer.
My personal approach: I use the silk layer only for stuff that gets onto the board. I nearly never have it visible (only for making it pretty at the end of the design process.)
I normally only display the fab layer which has the ipc complaint outline, reference and value fields (but i hide the value fields via the items control, the reference is made such that it fully fits inside the body outline -> not in the way.)
Meaning i use the fab layer during the design process, for documentation and of course during assembly.
For manual assembly take a look at Interactive Html Bom Plugin for KiCad 5.0