The last time I checked Fords of this vintage were worth 3 to 5 thousand dollars unless it happens to be a two door or a convertible, then the price goes up fast depending on options.
But the governing price for a buyer is how much is it worth to the seller. Owners of such old cars often will not let them go at any price!
If you go to the pubic library, in the reference section you may find a book on vintage car prices. Some book stores carry them also.
