I know it's not an official source but they had a side-by-side shot of the QF-2000 next to a QF-3000 in the VF-0 book. The 3000 was already bigger than the 2000. I'd think the X-9 would be just as big if not bigger than the 3000.
Also, why didn't they include that stand with the 30th Anniversary version instead of the little, bent plastic one?