Hello Oliver,
Thank you for your detailed and interesting story. To be honest, I was afraid it was going to be so expensive. I still have a problem with the insurance, because the 1000€ contribution is new for me. But with that sum in total, I'll be glad if they pay at all.
I've already seen twice how my workshop, Flaving, rebuilt a totally wrecked car very well. When it comes to bodywork, they are absolutely top of the line, and I'm sure they'll do it perfectly.
Was your cross member and the ladder frame still okay?