Hello,
To answer your questions, your certification manuscript should have 35 full (40 cells, 25 lines) pages. If your preliminary pages only equate to a few words, then, yes, it would be a good idea to add a page or two extra ...
Question 2 - I personally would add the ampersand to the Special Symbols page.
Question 3 - the word To should be contracted.
Happy Holidays!
Jana