Check jimmy p's thread on stock floor bodydrop in the tech articles, Basically (its harder than it sounds) you raise the bed floor which drops it over the frame, cut the frame underneath the cab and reinforce with new tube stock, raise the tanny hump in cab, notch fire wall for wheels(if needed), and drop the front frame horns, lower the cab body mounts. In reality there are alot more details and little specifics. I would recommend a stock floor over a traditional. As far as how much, to get it done at a shop look for anywheres from $3000-$4000 at some of your higher end shops, As far as work involved, All I have to say is that it is a labor of love!!!!!!