Oh dear, I have had two cars wrote off in the last 7 months. Not a nice feeling getting hit or even hitting something your self. Hope you get it sorted soon.
It's being sorted by insurance. No fault claim. but yes. If it was to be written off (unlikely) I'd be buying back and repairing with a new bumper & arch.
I am sure you are familiar with CUE (Claims Underwriting Exchange) and insurance companies going through the insurance process.
If not let me know and I might be able to help so you don't have claims values added to your claim without your knowledge (in which you can claim compensation for) and making sure that it does not get that far in the first place.
If you do know all about that, apologies and I hope it goes well.