Takman,
I think it is a #7 contour, but I would have to refer to Shawn on that one to be 100%. If you are thinking about a build I would encourage you to give Shawn a call. His customer service is great and he will answer any questions that you have to help you with your build, 100% top notch guy.
Let us know what you decide to do. /ubbthreads/images/graemlins/wink.gif
Good Luck!
Mike