I put my 93' viper on Hagerty Insurance. I heard that they are more likely to give you the stated value of your car. I also have two classic cars a 68' Charger and a 73" Cuda. I put all of them on Hagerty. Do you have an Insurance Company that is better. Insurance companies will go do a price comparison and give you the lowest value they can find. I didn't have to prove there condition but I bet if something happened they would want proof. Do you think it is worth paying a professional classic car evaluator to give you a quote so you have a reference from a professional? Holds more weight in court.