Looking for screen spoiler to fit BMW Dakar screen

[ChristoffGS]

As the subject states - I've fitted a dakar screen to my standard single cylinder F650GS.  I am looking for an aerotrim type spoiler to fit said screen (see picture for reference), taking the 'lip' of the screen into account.  Anyone know of such a spoiler that would fit?

Thanks,

 

[zebra]

 

[Grunder]

 

[ChristoffGS]