Welcome Johno,
Great to have you aboard.
You may want to have a look at ERA's website under the Index section.
Era Replica Automobiles 427 - The premier 427 replica in kit and turn-key
Closest thing to a build manual/info guide that i can find.
ERA have a great cobra, and this index page nearly sold me on one, it just a shame they can't easily be registered here in Aus.
Good luck with your car and build.