R10 is unfortunately massive - bigger than a metal Behemoth or Ontos (can do pics).
I confess I picked up a bunch of them, because their turrets are perfect for converting Saladins to the TAG/SRM variant. I keep meaning to turn the hulls into subs, eg. the Moray.
Mixed emotions on not covering those with a DA mini - while I did buy heaps a decade or so ago and am still using up the horde, availability is not that great - you can find them, but the prices are rising. And I think Demo Agents can't use DA minis in official games. In the meantime though I still use them.