Thank you kuko61, that will be great, please remember to share it here when you do!
In the mean time I have tried one made for the SP3 – http://sdrv.ms/12pmwq0 credit to jommon on surfaceforums.net. I’ve attached it too in case that link dies at some point. OK it’s not allowed so I guess not.
It seems to work pretty well to me. Instructions on how to install it here; http://www.tftcentral.co.uk/articles/icc_profiles.htm#install — the instructions for windows 7 worked.