Gentlemen, this is an E9.
A 40 year old car.
Very very few E9s are around that have never been at least partially painted, welded, repaired in some way. And those that haven´t are more often than not are really bad (hidden-)rustbuckets.
I can´t remember ever having seen a really great condition E9 that has never in any way been repaired / restored / painted.
I believe this price reduction business for minor repairs is appropriate for brand new, high value cars and even then I consider it somewhat excessive
Actually where I live, insurance and legal opinion is that when an older car is involved in an accident and gets bodywork and paint repairs, there actually is a hike in value as a well done repair will probably leave the section in a better state than before.
As for this particular damage visible in these pictures, I believe if a reputable shop such as coupeking fixes it, it´ll actually be in better shape than before, even if it looked great before. We all know bumpers that look great from outside but have quite some rust inside and front valances and kidneys that hid quite a bit of corrosion behind nice paint.
I wouldn´t get greedy here and take full coverage of the repair cost, be glad about the fresh parts and fresh paint and consider it a little free part-resto.
Anyone want to bump into the front of my car (lightly)? I could use some fresh paint on my hood.
Of course, just my 2 cents...