I personally have manual windows in my trucks, but I have watched some video's on you tube on removing power windows from these trucks, they were very informative. Have you looked and watched any of these ?
From what I remember, everything unbolts, and you have to twist some of the stuff for it to come out, but it all comes out. I also remember that 1 bolt for the regulator was a real PITA to get to in the video.