Well, here's somewhat improved version. I must admit that my knowledge of graphics editing programs is very basic. I got the idea to use color range to select and paste six color layers (RGB and CMY) into new picture and then just stack them carefully. I've also sharpened the picture a bit. Hopefully someone with more artistic talent will be able to enhance this.
btw. the idea is ludicrous, I've been in Concorde's cockpit in Duxford and the whole plane feels cramped. Those passengers in the back wouldn't be able to see the front doors.