There isn't.
There is a third player, who in my knowledge brings the pricing into perspective. Her name is Marcie Cippriani and she helped pull all of this together, putting things where they should go and helping with both development and layout. She is also responsible for the very nice Ford GT books put out and sold by GT Joey. She has also had a hand in a number of other Mustang books as well.
I'll have to get her to sign my copy one day as well.