Nightmare, I feel for you mate.
When the missus did a similar thing with the Espace I used one of these smart repair companies, also used the on the 911 when some
drove in to in whilst parked up an drove off!
They're in Manchester so no good to you but there must be similar organisations down there. Good alternative to a body shop because aswell as being cheaper they do the repair same day.
I also noticed when I was in my local Ren dealer that they have a menu system for some body repairs which looked to be quite reasonble, perhaps worth checking with them.
Good luck with it.