I can answer a couple of those.
1) YES you must fill out every page. If you look at the very bottom of every page it shows every department of CGC that needs a copy. It may not show when you print it out (mine didn't) but it shows on the PDF.
4) Yes, I would save a copy for your records, but the good thing is that you do not have to go through that much trouble. The PDF actually lets you type out your information in it on the computer and it will also populate to the other forms. So you don't have to hand write everything 9 times. You only have to really fill out the first page, print all the pages out, sign and date them, then you are done. You can print out multiple copies instead of scanning it.