same thing, take them off and work on them, the mirror should have 3 bolts holding it on, behind a plastic piece, it will need to come off when you take the door skin off most likely.
the tool can be picked up at any parts store. 5 to 10 bucks. if the clips break, dont worry, they are fairly cheap to replace, the tool is more so you dont scratch your paint or break the door skin.
the lower molding should be clipped on some how, i see them missing all the time. my regal lower panel was off when i bought my car, i put it back with tree clips. i need to find the right clips still, it uses a metal strip then through the plastic molding. yours looks easier to deal with then mine does.
