I've heard SEM is the paint of choice for this job. You should also consider placing dynomat while the panel is off, too.
Taking out/off the door panel:
(1) Remove the red reflector, theres one screw you'll need to remove in there (its in there a ways)
(2) Remove middle screws underneath handle (2) - after snapping out the little cover
(3) In the bottom left (using drivers side as an example) use a flathead wrapped in some cloth and wedge it between the metal and door panel, apply as little force as possible to pop the door panel out in this area. Be cautious about scratching the paint.
(4) Continue to pop out the door panel clips from by going around the edge of the door with the flathead. You only need to worry about the left/right/bottom sides of the panel.
(5) Once the clips are all out, push down on the black window thing (so you don't take it out with the panel) and push up on the panel, taking it off
(6) Hover it next to the door (have someone else do this) while you disconnect all the electronics (theyre all snap out/in)
(7) Done
Some have suggested buying new clips...you dont really need to buy them, even if they appear a little worn (if theyre bent sideways thats another situation). I've take off my door panel a million times and the originals still work great. I think I can do it in about two minutes now

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