I'm preparing to fabricate new door cards on a '62 190D, but I'm a little rusty on removal of the trim for all the bits holding the panel on, like the grab bar, latch release and wing window knob. Any pics or words of encouragement would be greatly appreciated.
Grab bar - if there is a chrome bezel at the end(s) of it, pop the chrome bezel up and there will be a big phillips head screw underneith.
Latch release - I assume you mean interior door handle. In the place where you stick your fingers to pull the little handle out to open the door from the inside, there is a plastic hemisphere in the recessed area. Pry that out with a small screwdriver. Beneath is a smallish phillips head screw. Take it out and slide the chrome escutcheon out. The door handle itself is attached to the metal door panel beneath the door card and doesn't have to be removed.
The wing window knob - the center disk of the knob comes out (I guess try a very small screwdriver) and there's a nut or screw under that.
Armrest - if there is a big armrest look for two big holes on the underside going into the door. Big phillips head screws in each of those.
Chrome door latch escutcheon - remove the visible two little chrome screws.
Window crank - cars with small black knobs with a chrome ring - put your finger or a screwdriver on the underside of the padded crank pad insert and feel for the tense metal area that is securing it to the window crank. Push outwards on that and if necessary pry up from the middle (not the ends). When that comes off there is a phillips head screw securing the window crank. If you have an earlier car than this type of crank, I don't know how it is removed.
Stuff I don't know about
: if there is a door pocket it _might_ need to slide up on the door with the door card in order to remove it. This is the case on a W123 and I think W114. I have no idea on a Fintail. Probably a non-issue. But after you pop out all of the perimeter clips and remove the other stuff, if the door card seems attached somewhere in the middle that is not obvious, try lifting up.
Oh, the interior window sill... I have no idea how this is removed but I would guess by pulling up after removing the door lock buttons.