I'll check shipping tomorrow. Its gonna be expensive due to the long length of the spoiler, and I'll probably put it in 2 boxes (1 for the large piece, 1 for the smaller pieces).
I found some boxes at work that should work. based on the dimensions it looks about 30$ for shipping. and to pack it. I'm gonna have to combine 2 boxes together to make it work. IMO if you were to buy them I'd pay the extra cash to have them insured, due to how delicate the spoiler is.