Got the bottom of the door finished up and sanded. I then I shot a coat of etch primer on the entire door bottom. Not even worth a pic, but just know that the door bottom is now a very nice shade of olive drab!
Tomorrow I plan on getting the other door torn down and then getting both of them and the door panel cleaned up for paint.
BTW I checked on the parts that are sitting in the vinegar bath and they are doing really great. Lots of bubbles coming up which means that the rust is being dissolved. I'll take them out in a couple of days and check the real progress and report back.
Stay tuned...