Another tip that worked for me...when you taking off the main bolts 2 on passenger and 3 on drivers side...take some thin cardboard and shape a funnel/tube then put in the hole in the door up to to the bolt. This will still give enough clearance to get your 10mm in and that way when you undo the bolt it cannot drop down into the door. I also had one of those pointer like magnetic grabbers so when I got the bolt out and it dropped on the cardboard I then used the magnet to retrieve it...hell no did I want something dropping in the door...
Also I did not need to remove the lock on the drivers side...my car is a 2013 Nismo maybe its different then some of these other guys saying you have to remove it...?? I pushed up wiggled etc. and out and the handle came off...when I put it in it just went over the lock no problem...