re: How much am I getting sued for with this much damage?

The only advice I can give is for whoever was driving to refuse to give their license to the police officer. Tell them you are more than willing to exchange info with the other driver but demanding a license is turning a civil process into a criminal process. If the cop gives you any lip, just keep asking if you’re detained.

Other than that helpful advice, call your insurance company asap and follow their directions.