I have an idea. In the S2000's we were able to vent the hood. By venting I mean cutting the hood itself around the ribs and putting a mesh grill. Not only would this reduce weight but also release excess engine bay heat. Here's what I mean.
S2000 Forums -> The Vented Hood Club
I actually have a guy on LI who does this professionally. I had it done on my S and it worked and looked great.