My Favorite Guides
Be super careful not to bend the metal tabs that hook the upper case into the lower case. If bent these make it challenging to close and reattach the upper case.
Ditto the other comments re: bottom tabs first the bowing the keyboard slightly to get the ends in. And despite the warnings I almost missed the tiny middle backlight ribbon connector - had to undo 4 screws and pry it through at the last minute!