Wow.. I just read this thread... at least the guy who hit you didn't even try to candy coat it and took full responsibility. That is rare these days. I had the same thing happen to a Porsche I built. It was on a 70 chassis and it had a full tube frame and the body panels, roof and everything was carbon fiber. This was only 400hp but wieghed 1900 lbs wet

All the aftermarket Porsche body panels fit like crap so just to make the panels fit perfect and paint was very costly . Got hit.. and I have to say , Farmers paid out almost 30k after I supplied them with some photos of build and receipts, met with the adjuster... and I was paid in less than two weeks. Hopefully your experience will be as good.
And I am glad you were belted.. guys don't realize that the human body and belts stretch in an impact.. and an unhelmeted head doesn't like eating chrome moly or mild steel tubing !