Jack
First of all, welcome to this site. That is a way cool project that you and your dad are starting and you have found the very best place to get advice on how to build a car. How do I know? Well, in 2003, I started a project just like yours with my 10 year old son. It was a great experience that will last a lifetime. Zach is now 15, we have sold our GT/CS to PonyGal on this site and are currently building a 390FE Cobra Replica.
We used this site a great deal to ask questions about how to put things together. There are so many smart people on this site that are very kind about offering advice. In the end, you will have a great piece of history and a great ride to show off to your buddies.
Best of luck to you. Show us pictures so we can better understand your project. I have included a before and after picture of our project.
Oh....and for your dad....my hat is off to you sir....get ready for a grand adventure that I could not just do once....but twice it is so good!
Paul