The insurance company's will only give you LIKE vehicle value, in your area. That is why, the offer is so low. This is difficult to fight, but it can be done, although it may take a lawyer. Receipts of recent work done will help. You could have done a classic vehicle insurance, but the truck can not be a Dailey driver. You must have a garage or storage area, to qualify for classic vehicle insurance. All of this really does mater now though, but you can fight there estamineted value though.