[mrolds88]

As far as a fix, once you have regathered your parts, this is what I would do. Take the plate that held the nut in place and hold it up on the door side of the jamb, marking the outline of it. drill several holes I areas that you can later weld or rivet. Using a unraveled paper clip, hook the paper clip in the plate and nut, then tie a string or piece of wire that you fed down through the hole in the B pillar. Then simply pull it up and through the hole. If you need to weld, the paper clip will take what you need it to. Once you finish the repair, then just use a pair of pliers to remove the paper clip.