How do you change pickups to EMG 707's on a 7-string electric guitar?

I am about to get an Ibanez seven string guitar, but before I do, I want a list on things to do to change them. If you found an online video to help you, please send it to me in your sources. I'm asking this just in case I get an ARZ307 (7-string Les Paul) with AH37 Humbuckers, and I don't like the sound of the pickups, I want to know how to change them so I can. ALSO: Are EMG 707's active pickups?