Sorry if Im late here. Dont know if you found anything. But might I recommend you try MPS Auto Salvage out of Georgia. They have a website.
http://mpsautosalvage.com/sunshop/
Theyre a mustang parts specialist and wrecking yard for all/most gen mustangs. They get a few machs from time to time. I got my timing cover from them a year ago when mine got damaged. They had 3 machs in the yard at the time.
Apparently people wreck these often and many get totaled by insurance simply because Ford no longer makes the hood and you cant get it.