haha
i think a lexan wing to replace the heavy stock one would be great.
just cut a 1 piece thing so it has like, 30 degrees of angle and will just slot right into the existing spoiler holes. it'll actually function.
the hood you can reduce weight on also by making a lightweight hood.
you just deattach the hood and use it as a mold and use a hot blowdryer on some thin clear plastic(like bodykit packaging) laid over the hood, then cut out and glue. paint if you don't want it to be a clear hood.
then dremel from inside the body to make the front grille actually let air in, and there's more weight saved.
mini-z style side clips the plan here?