Great guide, but huge overkill!

As has been mentioned by others, I

1) removed the cover,

2) disconnected the battery (but left it in place)

3) unhooked the cable from the top edge of the hard disk bumper.

4) disconnected the wide 'port hatch' ribbon cable that sits on top of the drive, moving it back but not removing it completely.

5) disconnected the data cable for the hard disk where it plugs onto the logic board.

6) removed the screws holding the hard disk bumper in place

7) removed the hard disk.

Everything else is not needed, and you still have loads of room to work in. The more you touch in there, the easier it is to break something.

Thanks for the guide