My bed developed holes, right under the 5th wheel mounting plates. I also noticed the cross member are pretty well rotted, so I need to pull the bed. Has anyone done this and where did you get the parts from? Getting the bed off will be easy enough with my tractor and forks, but, how can I flip it over by myself to work on it without damaging it? I have a plasma cutter to remove the spot welds from the flange, and can grind the cross members off the floor sides, so have the tools to do the job, just need the parts and an idea how to work on it.