I believe only the body, from the firewall to the back is the Ford part. Another person at the car show said the engine was Dodge Hemi, but didn't see any visible markings on block or covers. And, have no clue where that nose came from! Maybe Lou -'lowrider'- can eyeball & ID the mystery components.
Thanks and for your extra photos.
Reinforces my comment "impressive".
I wondered if the grill area was custom made. That would be easy for some of the very clever metal fabricators
Will wait for Lou