I#8217;m building Tamiya#8217;s 1/48 Spitfire M1a. I bought a detail set and it includes a cockpit set and to be gentle, poor instructions. The instrument panel consists of two pieces. A piece of photo-film dials, and a piece of PE. The piece of photo-film dials goes on the back of the PE after it#8217;s been painted, but then what. Do I have to sand down the instrument panel from the model and the glue the PE and film to it or what ?? Thanks for any assistance.