If you do want new plastics, places like ProCaliber.com have OEM stuff. I think you can order it pre-painted in stock colors. That said, I agree with those that say, if the plastics are only scratched, not busted up, maybe repaint and keep them? If you can cheaply get it looking good on your own dime, it might be worth saving the money and riding it as is. However, it's a new bike and maybe you want it like new again. Will the insurance help with the fix?
I do think the most important part is that you're healthy (hopefully), but an important lesson is: you don't know why you crashed. Identifying what happened is extremely important if you want to learn from what happened and prevent it happening again. I have my guesses as to what could have caused it, but I'll keep them unless you want to share more details and try and nail down what could have occurred.
Never ride faster than you can stop