Thanks Richard, I am not familiar with that drawing film, but I'll check our little local art & frame shop. If they don't stock it, they can surely order it.
"Why are there no speaker jacks on a stereo camera?" Well, most likely they are made to be used with ear buds rather than speakers!! ;o)
Well, gang, I plan to tear the 4C down again this coming weekend, and will be doing it regularly thereafter until I can do it in my sleep. If I keep doing that then maybe someday I'll know that I have arrived when I can disassemble and reassemble it in a film changing tent!