eBay
Fontaine Custom Fiberglass Dually Long Bed. Fits Ford F350, F450 and F550 from 1999 through 2011. The color is black and it is in great condition or you can paint it any color to match your vehicle. Designed for 5th Wheel Towing. All lights are working and it has a wiring harness that you can connect to your vehicle.  This Custom Dually Bed retails for around $4,000. We will be willing to deliver this up to 200 miles from San Diego for a negotiable price.  Dimensions Approx - 36" tall x 103" long x 93" wide.