It's just a couple of tail lights mate. Easier to get them from the US than try and find them here and pay local parts prices. Yes it's on someone else's dollar but it was an honest mistake and I'm happy to keep the repair costs down rather than running up unnecessary expense. Karma, innit.
The body shop really does think those are the only parts required - the slam panel finishing piece is in the back of the car, by the way. Picked it up off the road in the way there