As mentioned the German release is simply “uncut” because the US release was censored in Germany. Has nothing to do with those unrated scenes.
If one wants to restore scenes to something, why not tackle the classic anime Fist of the North Star. The scenes of that actually exist, unlike Total Recall.
There is this blu ray:
However, some scenes are still censored. But there’s an Italian VHS and a Japanese trailer that shows some of these scenes uncensored. Here is a page that compared the censored/uncensored scenes and has info on them
If someone could replace those censored scenes into the 4x3 aspect ratio blu ray footage that would be divine