How do I place a large legend (key) outside of the mesh?

[ebardie]

I'd like to place the legend to the right of the mesh so as not to cover the plot series.

I've tried using .position(SeriesLabelPosition::Coordinate(x,y) but that ends up with the markers pinning the legend to the side of the mesh:

Any idea if/how it's possible to move the legend outside the mesh?