Thanks, all, for the encouragement. FredP helped to mill some of the thicknesses on this right close to 3/8 to give me room to sand. It doesn't take long when you have the right equipment, sharp blades on your planer, and a drum sander. I saw Fred's set up and I need to work on a setup for resawing thicknesses on my tablesaw.
Cutting takes very little time - maybe an hour or two. It's the shaping, clamping and gluing that seems to take the bulk of the time. I also take liberty with the pattern in that I add dowels in order to strengthen the joinery of the fenders, hood and trunk on this type of "toy". I started on November 2nd during commercials and halftime of the football games. Selecting the woods, attaching the patterns and cutting was pretty well done that night with the exceptions of the hood and trunk because of the gluing that had to be done to get the proper thicknesses. The following weekend was finishing the cutting of the hood and trunk, then the shaping of the trunk, routing the round overs on everything that needed a round over. I think the weekend of the 15th was too cold, wet and nasty outside to do much so I did some finish sanding and some drilling for dowels and wheel pins. I did the entire glue up this past weekend.
Total time? I'd guess about 10 hours of real time involved in it spread out over 4 weekends. Gluing and leaving it alone tries one's patience, but when there's an exciting football game to watch, one can quickly forget the project is getting some much needed "dry time."