^+1 x 2 helpers would be great!
I changed the driver side door on my hatch like a month ago and it was just a pain in the ass to hold up the door and line up that stupid little hinge type thingy with that little thing you have to hammer out from between it (I dont know how to describe it but you will know what I am talking about when you get to it) for the door to come loose!
Just takes alot of patience and a good helper to do stuff while your holding the door.