Check with member Eusa1, he might have one for sale. Also, a more expensive route, but there are a couple on Ebay - but you have to buy the whole trunk assembly.
If you go the Ebay route, maybe we can find a member who can help either get the wing 3D scanned & 3D printed copies made, or perhaps a mold pulled off the part to cast new wings from. IMHO, the wing really complements the looks and the extra LED lighting is a great safety feature.
In any case, if you manage to track down a wing and I can be of any assistance in the modifications, don't hesitate to reach out to me.