you are in need of a good junk yard ---- if you find a yard that is competent they have an on-line parts locator and shipping to you .. it is a hunt and find job for you to find the correct wrecking yard to talk to ---- be patient and respectful and the first place that you visit may not be the only one --- I've had old cars and it ain't easy to find parts for any of 'em .... keep looking and asking....
The Parts have been Discontinued by ford (just means they don't make it anymore) but are still Available Via the Vintage parts program through Ford. ALL dealerships have the ability to get these parts. You Pay Fords old List Price plus shipping. ( Try getting out of the shipping charge. Dealerships get free ground shipping through vintage.) and the dealer will have it ordered for you.