I am going to have the sheetmetal off thankfully, so I will actually be able to get at the thing! I don't think that pulling the glove box would bother me too terribly much either.
Good to hear that they can be plugged. That is what I was planning on trying to do.
I will definately keep the parts.
What do you think about covering the openings by simply welding in some cut to fit sheet metal? I suppose I would try to butt-weld it in to give it as smooth a look as possible... or I could bolt on a piece of sheet metal to look somewhat like a factory heater delete plate. Any suggestions on this? Also, any more info is always appreciated.