Valiant is no more, Drunk Driver totaled it.

Go to hagerty insurance and run the value deal they have. If the other car is insured, you may be up against the property damage limits pretty quickly especially if it is the minimum required coverage in CA.

Look online for cars all over the country for comparable values. The adjuster will pull the "it's an old car barely worth scrap value" type of stuff. They did that with a 66 Mustang my mother owned. They paid dearly for that one.

They also have to provide with a comparable value assessment to justify their basis for settlement in CA, IIRC. That may be difficult with the age of your vehicle.

It's up to you to do the homework to come up with a fair value of the car. Stick to your guns as well on whatever you come up with.