Mate I feel you pain, I had an atomic spring fail about 2 months ago and dropped the valve and then broke the head of the valve off and it bounced around in the bore for a bit and jammed the head of the valve perpindicular in the head, imo I don't think ford will help but as the lads have said the worst they can say is no.
The next question u need to ask yourself is how deep are you pockets and are/were you looking to do performance mods on the car and how far you were looking at going, and that will indicate wether to look for a a used long motor or look at rebuilding what you've got