You're cladding looks like it could be repaired rather than replaced. It's worth a shot before you drop the $$$/time looking for a replacement. Just get it as close to the original shape as possible with a heat gun & then patch the cracks with epoxy. If you don't like the results, you've only lost a little time & very little money.
You can get an aftermarket lens pretty cheap too.
BTW, sorry to hear about your accident. I hit a deer down at Ft Benning years ago. Luckly I was in a rental car.