I'm not used to uploading forum photos so I hope these get there!
Here's the right-hand door detail for the forum-supplied dust seal. The left-hand door is different but follows the same position around the door.
I demonstrated the "shut" to the stealer technician who had previously done his best with it. He was very surprised at the difference it had made.
I also drove on the motorway for the first time after fitting the seals. The van is very definitely quieter, no question