Here's a great reference work covering Ford and hundreds of other makes.
That sounds like a good deal for the package.
Side note: The "Standard Catalog of American Cars 1805-1942 Third Edition" was copy righted 1996 and out of print several years bringing high prices on Ebay, etc. When they announced a new printing I ordered one expecting an updated version (4th edition?) but it was a reprint of the 3rd edition. I knew there were some new findings of cars not previously listed (I had submitted at least one.) so I was disappointed it was not updated.
I have the individual soft cover versions for Ford, Chevrolet, Buick, Pontiac, Chrysler and Cadillac. They take up about 5 1/2" of book shelf. I think they have more detail than the "American Cars" series.