Kev,i'm 99% certain that they won't fit. I have a set in the garage from my old 09 plate 800 that the previous owner gave me with the bike he had taken them off when he fitted the Bmw touring screen.
I never got to try them.
l have touratech screen on my 2011 800 gs so not much help there.
Try calling nippy for some advice
Gary
Just getting my new 800 ready for the Stella,picked it up today