Farmers Insurance, stated value policy here. . . . .
A stated value policy is better than a standard policy, but still not what you want to have. A stated value policy is based on a value that the vehicle owner "states" that it is worth. In the case of a claim, the insurance company will appraise the vehicle's worth. Rest assured that it will be less than you "stated".
value policy is the way to go (if it's available where you live). The value of the vehicle is agreed on up front.
In most states, these policies are only available on vehicles that are registered as antiques. All most all of them will have annual mileage, distance from home and secured (garage) parking restrictions. They usually require proof of transportation, a daily driver.
Personally, I have Grundy. Their milage/usage restrictions aren't quite as restrictive as Hagerty's. Grundy has also just released another insurance line called MVP. It designed to cover the daily drivers and vehicles like my van. A vehicle that gets driven more often, but still not a daily driver.