I already know that its only the dash that is from the Cougar, there is an full page article in the book "Boss 429 Performance Mustang Style" by Stephen B. Strange. The red car had the 429 SCJ engine and the blue car originally had the Boss 429 engine but was later fitted with the SCJ engine. The same car was also used in the television series "Dan August" from 1971 starring Burt Reynolds.
What I can't find out is wich doorpanel to use. The standard or molded panels with wood inserts?
The horse in the grille shall be placed in the center.