Fireworksolver,
Guess what??? Your dream machine is almost existing. I have the Viking Sapphire 870 and it: has bobbin warning, needle up and down, bobbin threading withour removing the thread..It is wonderful and halso has the speed control butto., presser foot down when you press on the peddle, sews without touching the peddle with the touch of a button, and on, and on, and on...