It is a neat looking little vessel.
I'll have to look up the other ones in the series too, since frequently they're hard to see, by design, to cover up the CGI work on them.
Best bet, other than Shapeways or e-Bay is probably the Starship Combat News forum. I suspect there are more than a few people interested in the series, and the vessels/troops from them.
There are a number of people that scratchbuild, and/or create limited production runs of various ships from Sci-Fi.
I want some of their battle-armored troops, as well, in 15mm, and/or 25mm/28mm scales.