Well the PAM 7750 movements are usually modified so that they only have the seconds at 9 post and date wheel left (NOTE: the date wheel on these is not covered by any cogs and looks like it can just be pulled right off), the chrono second hand post is removed (unless it is chrono model. Then the GMT version of the 7750 used in the PAMs has a separate closed module fixed on top of the movement which adds a GMT post (not sure exactly what's added, but it partially covers the date wheel as well). I happen to have both movements out of their case on my desk at home, if you want me to take some pics of what they look like on top.
As most of your video tutorials are of Rolex or Hublot fixes, they don't really show the equivalent fix needed to be done on the 7750. I suppose the Hublot ones would be, until you start dealing with the top part of the movement.
As the 7750 is much more complicated than a 6497, I only feel comfortable working on it to a certain point. If fixing the unwinding problem on the 7750 is accomplished the same way as this (2836-2) - with just removing some screws, rotor, module and a wheel or two, I'd feel comfortable doing it while referring to your guide. But if I'm going to encounter a spring, or tension filled part I'll probably leave it for an expert