For my second attempt I chose an easier route; Leave the protective film covering the film's adhesive on and simply attach the film to the sides of the display, and have it sort of hang in front of the screen.
I'd be sacrificing a bit of display quality, but I can revisit attempting to do it right again once I obtain the tools and/or skills.
#MARCHintosh #Apple #Macintosh #PowerBook #5300C #RetroComputing