I have 2 friends with the Scorpion helmets and they both swear by them. One of them has the 1000 and he showed me where the speakers go in the helmet, so yes you have a place for speakers. I liked the flip down inner shield (I think they call it the "speed shield") and my friend told me he doesn't have to worry about sunglasses at all then. I suppose, as someone else mentioned, it may not be it the perfect field of vision for everyone, but it sure looked like it dropped down far enough that it should work for about anyone. Anyway, this is all second hand knowledge that I'm tossing out here.
I had looked around and I didn't find anyone giving anything off on these, so you are probably doing well to find 10% off. I checked ebay also, and found them selling on there for full retail.