Super story --- it was as much fun reading it as getting the information from it. Sounds like you've got it nailed down pretty well.
I chunked my old Sullivan bulb some time ago and now only use syringes for the small stuff. I was able to find an all nylon syringe without the black rubber plunger tip -- some of the early NORVEL information warned that the rubber tip would deteriorate and cause contamination of the plug elements. Don't know if that was an urban legend or not, but I made the switch anyway.
It's been a great build thread with an excellent ending.
andrew