I was thinking about modifying Mohawk engine so that it is more forgiving when trying to setup slides.
In that way it should be possible to solve the puzzle using photos from the web rather than by the sound.
In the Mohawk there is function void Myst::rocketCheckSolution()
In the function there are five test for each of the five sounds (slides) in the form form :
I thought to change all those five test to following form :if (soundId != 9546)
solved = false;
There is bug report for this issue under :if ( abs(soundId-9546)>5 )
solved = false;
https://bugs.scummvm.org/ticket/12601