While I understand the OP needs to get a certain number to be able to sleep at night, I totally agree with this price. Id be willing to have a conversation if you're interested in letting it go within this range.
I'm not a body guy, but I know my way around that sort of stuff and I'd guess this is well above $10k of damage. There's always hidden damage beneath what you can see from the outside.
That being said, I think 10k is a very fair price, possibly even cheap. If you were local to me I'd be very...