used this for the rear and it cost less.
https://www.ebay.com/itm/GRILLE-REAR-TAILGATE-9-7-INCH-EMBLEM-Fits-for-2004-2019-Ford-F150/163465785439?var=462819357103&hash=item260f51f05f:g:4tkAAOSw5tNcEh6D
thread i learned of it...
What about the lower areas on either side of the hood? they come straight forward then turn in at the very front. I would interested and seeing that w/ the valley.
two things you could do to increase the internal size are:
1 make the back side out of fiberglass and attach the top to it
2 put synthetic stuffing(like batting or pillow stuffing) inside. it make the enclosure act like a larger one.