I have to say that it looks great! What a fantastic idea. However... it sure seems like a LONG time for them to wait to start this project. Maybe you could find another shop?
I havent found anyone else even willing to reply to an email. These guys have kept in touch and seem to be eager to tackle the project. They specialize in 4th gen ram air hoods and spoilers retro fitted for earlier gen Camaros and Firebirds. They also do sportback glass hatch replacements (which look pretty cool)...they have already located a test vehicle and used one of their existing wings to get an idea of where they stand on mold fabrication. They said they stay pretty busy during the summer months and the fall will give them some time to work up a mold and test fit on the car. I'm assuming it will take them until spring to get into production. They also stated that they will try to utilize the existing factory holes but will make that decision based on looks. So its possible the final product might reqire filling the factory holes to mount.