classic insurance help needed

I always use regular insurance on my classic cars - Liberty Mutual, Geico, Farmers. Geico was a nightmare (minivan hit by another Geico, wouldn't pay anybody). For some of the companies, insuring a 3rd car for 2 drivers wasn't much more. Never had a problem collecting in the ~3 times my Newport was hit (Liberty all times I recall). They totalled it twice and I kept the car. Once was just a passenger door (deer). Re value after the accidents, I just sent in ads and auction sales. They probably don't even know that my 4 door is worth less.