Well then since the family already has an expert telling them about it, our help is not needed. We can only go by the information and pictures that you have offered and our opinions are based on that information. We can go on forever and pick this truck apart, it's only going to be worth so much and that's the price variances that I posted. There is nothing special about it being an old US Navy truck. But the final decision will be how much they want for it. There are appraisal services available in your area, I suggest that they use them.