If anyone is driving through Vegas and needs a helmet I have one I'd sell cheap. Aria GP-J3 size XXL (7-3/4 - 7-7/8). Snell 2010, so it times out soon. I used it three times, last at R9.
It's an open face version, fine for use in our enclosed GTs, so easier to get eyeglasses on and off.
Edit: I looked it up and the expiration is +12 years, so this is good to 2022.