Unfortunately, you can't get one at this time. The gentleman's agreement I have with SVS giving me their drawing was to make only two, and as I explained to them I started with 3 blanks in case something went wrong with the first one.
The slight defects (very tiny overcuts with a router bit) on the first one were easily remedied, and the nice fellow at SVS did provide me with one more logo plate and set of metal pins to finish it.
It's definitely not something a person without CNC equipment should attempt. I don't think SVS is comfortable providing hardware to everyone claiming to be able to make them, as they could be a lot of poor quality grilles out there with the SVS logo on it and complaints about something they didn't make.
Sorry I can't help more people. Truly.