Personally, I'm not a big fan of body kit stuff...
Most of time, it's just added weight, and it doesn't increase performance.
If it looks good to you, then go for it!
Most of those modified stock hood scoops don't stick around for long.
Many serious FC set-up's go FMIC, which negates the use of the hood scoop opening.
This is probably why those things are rare, as most do not have a need for it.
More popular (and available) are the hood scoop "covers" - i.e. ala R.E. Amemiya, whether it be a plain cover or a vented one.
I see a lot of these on Yahoo Japan Auctions, and I'm sitting on one myself.
You'll see them pop up on eBay every once in a while too.
You're lucky you're on the "mainland" and can take advantage of Ground shipping.
Being stuck in Hawaii sucks cause all those big, heavy body kit pieces cost an arm and a leg to send over!
-Ted