So after a bit of tweaking to get the angle of the brackets right, this is how it looks from the rear:


Close up:
You'll see that I've slotted two lengths of clear tube where the seatbelts pass under the windstop. I don't think they will rub, it's just a precaution..........

It's almost invisible when fitted........


So all I need to do now is road test it, but not today.
I'll report back if it makes any difference.