oh goodness, so sorry to hear. Cringed to see a Nismo that way.
At least it sounds like the Lady took responsibility. It could've been a lot worst if she tried to deny it. You probably have enough witnesses and other conditions to back you up, but it would've been a headache and lot more time to sort out.
I personally would suggest people to get dash cams. I have two in mine. A high quality one in the front, and a medium quality one in the back, with much lower profile. The front one is held by a rear-view mirror adapter as I hate the look of suction cups. The rear is tinted so that hides the suction cup pretty well.
It's one of those cases where it's better to "have and not need", than to "need and not have". This way, if it's the other party's fault, it'll be easily supported by your footage to show police and send to insurance. It'll also help others if you happen to catch an accident too. The $160 spent on this setup is well worth the ease of mind, imo. Especially for such nice cars.
Best wishes on the repairs. You should post pics on the results.