This technician has left out several crucial steps for this repair several screws on the bottom and several underneath the keyboard before the laptop casing will come apart, common sense for a tech but a how-to should not leave these details out.

You have to remove several screws on the bottom and a few screws underneath the keyboard before this step, there is no mention of any of this in your steps.

Wrong, you can't just remove the keyboard, you have to remove the 2 bolts labeled keyboard on the bottom or you are going to have a bad time.