Whilst picking up a few spare clips for the door liner (both red and white - what's that all about?), the parts tech printed out the Volvo specific technique for inside door work, including lock replacement and the window channel replacement. It would probably have become 'clear' to me with the liner removed, but there're a few details which I think will make the job much easier. And so the file grows!. I'll post with some results when the weather clears enough to risk going at the door al fresco.
Cheers.