What you wish you had kept

I'm selling off my parts car to a friend. All that's left is the body. Which peices of metal do you wish you had kept? I'm afraid I'm selling something I may need in the future. Thoughts?...
Plenty of cars I let go over the years that I wish I had kept. I had about 10 duster parts cars at one time. A few years back a guy offered me 6 dusters he had in his yard but I turned them down and they got scrapped. Yeah, really regret it now.
As far as your parts car, save anything that is in good shape and especially pieces that are not reproduced. I personally like to keep a spare of most parts that may be damaged while driving. I have extra grills, fenders, valance, etc.
I used to pick up A body parts cars all day for $50 but the supply is dried up for the most part. I look at the price on the repro sheet metal and I want to choke someone. This stuff has doubled(sometimes tripled) in price in the past 10 years.