If anyone is interested hayway farms just made a 1st gen casting. He can do a reg. or ext. cab and should be able to do just about any color. I don't think he can do a pickup dually bed yet, but he can add a couple different styles of flatbeds. He sells some on ebay or you can contact him directly on Facebook for a quote.
http://www.ebay.com/itm/1-64-scale-Cust ... 3379b89363