I’d say you have a few choices… a 1/18 scale model of a GT3 or one of the race cars, history of the 911 book, or a book on Porsche history with LeMans, OR a cool hat or t shirt. Lots of options really…just whatever would keep his interest and grow the hobby for him
I’d agree this is probably 20k. I had a similar (but less aggressive) scratch on an eTron a couple years back thanks to a random jackass in a parking deck that didn’t leave a note or anything. Because of the aluminum door, the body shop had to replace the entire thing and the popped out and filled the rear panel that was steel. My insurance first gave us a bunch of hassle on the cost, but it was a certified Audi shop and they walked them through all the items for the repair and it eventually got done 8 weeks later