Aus78Formula, you rock!
That very last step on the first link you provided shows the part I want to repair as called the "aluminum channel", and it is removable. I wonder what chemical or tools & procedure I should use to remove the channel? I don't see a reason to remove the aluminum brackets in my case. If I can remove the aluminum channel I can try to remove the dents I have and/or send it out to someone with that gift if I can't do it to my satisfaction (most likely what will happen).
Thanks!