Remove iSight and wifi card?

What you are going to need to do is remove the LCD assembly from the computer. You can also leave it on too, but you need to watch the keyboard and hinge cover. You can do it either way and it should work for you.

After you removed the display assembly(or left it on the computer) you need to work on gutting the LCD assembly to get it apart. Once you do this your IT department can remove the webcam.

However, this isn't really considered a "serviceable" part, so individual parts will be a pain in the rear to find unless it's from someone's used reject laptop, or a cracked display assembly.

As to the airport card, see this guide on removing it. That should get that out of the computer. This will also remove the Bluetooth from the computer, since it's a combined card.