I'm slowly trying to take a 30 Fargo wagon and make a Woodie out of it. The original truck had a wooden base, skined with steel so I have the original wooden patterns to go from. I can't imagine trying to start from scratch. I have mocked it up in pine to get a feel of what the constuction will entail and try and get the proportions right. I have just started working on the ash that will be used for the finished product. The doors are really really hard to do.

http://www.flickr.com/photos/busch_bob/2113984810/sizes/l/in/set-72157603469089655/


Here are some great information pictures of various woodies. Click on each picture for more detailed shots of the car. Great site for looking at different details of the car. There is another page that has more woodies. The 34 Ford in the other page is worth checking out.

http://www.woodiesusa.com/recent_sales.asp


Here are 150+ pictures of Powerwagons in various forms of completion and delapidation.

http://imageevent.com/powerwagon/woodies


Here is a set on restoring a 4X4 that gives a good shot of the super structure and the door construction. They start at the bottom of the page.
http://www.flickr.com/photos/4x4woodie/