1) The status of Muktzah is determined at the onset of Shabbos. Current considerations of its status on Shabbos do not affect its Muktzah status.
2) This is an excellent question. Tosfos DH Ela at the top of Nun Zayin asks it and gives two answers (Ayin Sham, or ask me for details if you have difficulty).
3) Sorry, can’t help you there. First of all, I do not know what all of those things are. Second of all, it is definitely not on the Daf!