Hi,Thank you everyone,I did restored the spoiler.I am not happy with its finish, I should work hard for sanding and painting.But currently this is my best,do not look it closely!I used a heat gun to be flexible the portion of it where should be straighten.Also I put FRP liquid and cloth to fill the gap between body panel and the spoiler.And for reinforce the spoiler.Color is not matching for the original,but I am OK.Please note 3 holes for the emblem on the back,they are a good sign of original early one.The earliest spoiler has only one emblem " Fairlady Z" . These holes are exactly correct locations and dot size.Compare the official photo of Z432-R, you will see mine has the same location of the emblem. I looked into holes from inside of the spoiler,there are no evidence of repairing or filling extra holes. kats