This sounds like a pretty fair price for a flat fender in good working condition. Not many comments about the body, so that will likely need closer inspection.
"This is a 1949 Willys CJ3A Jeep that runs and drives good. Has original flathead 4 cyl engine, T90 3 speed trans and model 18 twin stick transfer case. New 12v alternator, voltage regulator, battery and the original starter has been overhauled and works like new. Has front bucket seats and a rear seat as well. Roll bar, bikini top, spare tire w/ carrier and fuel can carrier. All wiring, gauges, blinkers and lights work fine…. 360-513-9824"
http://portland.craigslist.org/clk/car/714826867.html
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This same seller has the following parts for sale:
Complete running F134 engine carb to oil pan $250 Willys CJ3A frame in great shape $250
Willy's stamped hood for CJ2A or CJ3A $35
Dana 25 front axle from CJ2A $75
Koenig PTO unit rebuilt W/ mounting bolts $225 360-513-9824