Remember early mk3's have different shape Wong indicators than later models.
That would have to be something to address if we get enough people. I'm sure if they wanted 2 wings that will never rust they might be willing to make a compromise on the shapes of their side repeaters

As an idea a full rear spoiler for an R34 skyline is £285, however there is a massive difference between a wing and a spoiler. A wing is far easier to make whereas a spoiler is extremely difficult.
Wings are basically flat sheet, easy enough to make and the fibreglass panels we make are for top end cars too like range rover (in fact we just fitted one to a footballers new vogue).
I shall get a price for both carbon and fibreglass wings. carbon will be more expensive as you have to use clear coat gel and the matting is expensive, it's not the cheap impregnated stuff, plus you've got resin and the man hours it takes to make them, however being a group buy i'm sure a compromise can be worked out.