Hmm, lots of questions. Follow the Engine Book carefully, and also check out the Engine Rebuild Wizard:
http://www.pelicanparts.com/cgi-bin/wizards/parts_wizard.cgi?wizard_root=911_engine_rebuild
Other than that, ask your questions here. As I mention in the book, it's best to tear down your engine to see what you've got to deal with, before you get ahead of yourself...
-Wayne