Read about what needs to be done in books and ask here about anything you do not understand.
You are in effect going to become a one man assembly line and "remanufacture" a brand new car utilizing either fully restored parts or modified and upgraded parts to improve safety and performance (technology has changes a lot in the past forty years). You need body working skills of metal fabrication and welding as well as being a competent painter, electrician, and mechanic to bring it back to life. The one other skill you need is that of a financier to pay the bills and justify the expense of what you are doing to your significant other.
Just like a WWII fighter pilot, you can swagger a bit as you stroll down the line of parked planes with the words Pilot, Co-Pilot, Navigator, Gunner and Bombardier sewn into your leather flight jacket (only in your case it is mechanic, welder, painter, body man, electrician, and upholster and all the cars are parked with the hoods up). Good Luck!
Big Dave