I have for sale a replica world rally car rear spoiler. It was on a rally car, but i dont know much about it. Its possible it is a real one in fiberglass, but Im not going to make any claims!
It has some damage from removing from the aluminum trunk (which I also have but was damaged in shipping. Two cracks, and one of the mounting holes is broken, but any shop can fix it and it would need to be painted anyways.
If you have any questions feel free to ask! because of the rarity and size Ill ask 525 shipped and paypalled.
I could also work out something to have this fixed and painted to match your car before shipped to you if interested...