Hey, don't be sorry. Look at this as an opportunity. d8-)
I'm really curious about it. Making a body-panel die of the right shape, more or less, that will last through a short run, more or less, has been done for at least 50 or 60 years, using Kirksite and epoxy. Making precision replacement panels, especially ones that can fit together reasonably into a complete car, like the ones described in that NYT article, is something else again. As you mentioned, getting the springback right, and all the flanges and so on is not the same thing as whacking out the basic shape.
I'll see what I can find out. Maybe after the holidays.
-- Ed Huntress