Another update
..
Autoglass came yesterday with the right screen.
The technician found that the last time the screen has been done both scuttle clips had been binned and the screen trims had been re-used and just filled with clear silicone sealant. So some utter cowboy reused the single use trims and destroyed the paint in doing so.
For the record, I bought new genuine Renault seals and asked Autoglass to use those rather than the pattern they supply. It cost me £27 posted.
This has caused the paint in the windscreen aperture to bubble and flake off. It's been treated with a rust preventer and it isn't visible but I still know it's there.
I'm going to get the screen removed and the aperture sorted out/roof painted when I get the front end done.
It seems like some very silly corners were cut on this car at some point in it's life, but this should be the last thing I find now, everything else has either had Scott at SG's hands on or has already been sorted once the paintwork is done so hopefully V6 life will be all good after some hefty bills this coming Spring.
Scuttle clips and a new squib (mine is a bit clicky) should be here from RPD this morning.