I'm in the exact same predicament. Mine was bent, but I think I am going to replace it with a new one. I don't think bending it back will look right. I don't know how to get it off either, but I think that we're going to have to take the entire plastic moulding off, and then the chome strip is attached from behind somehow. My best guess.
'86 420SE Euro
904 Midnight Blue, Gray Velour
Dad bought it new, now I own it.
"A Mercedes-Benz is like a fine wine, it only gets better with age."