Good luck finding an bargins on new steel. You would be lucky to find any at the scrap yard either. Thanks to China, scrap steel is at record prices. Junk cars are bringing over $200 dollar here. Most of the stuff coming into a scrap yard in cut down to 3' or less as thats the lenth for max value. You might try going out in the county and finding a newer wrecked or retired truck with a useable bed.