Thanks for the words guys. Peter T, I figured out how to do the buck based on pictures from 2 old "Trend Books" from the late 50's. A metal shaper named Jack Sutton built bucks in similar fashion.
I look at the car 2 dimensionally and see it in a grid. This helps identify all the lines, highs, lows, curves, etc. Then I figured out which pieces to start with as main stringers and then the shorter/smaller pieces filled in after... It's a bit difficult to explain... I have a video on youtube here:
www.youtube.com/watch?v=LynsRY9tiBA
Chris