Chosen Solution

I dropped my phone and cracked the rear glass panel and the glass on the rear camera lens? Everything still works perfect but is it possible to change the back glass panel?

This phone is quite new. I would check with Google to see if they will replace the glass for you under warranty. At the time of this post there is no such camera lens or back glass existing for your phone yet so in my opinion it would just be worth it to pull out your wallet and let Google handle this.