They're building Marauders and Warhammers on Wallis in the Marik book, so I'd assume they can get their hands on the MAD-9M and 9M2. (The other Marauder line in the FWL was on Gibson, so, uh, blame Regulus!)
As far as the Marauder II, they may be able to redevelop it in-house, but that would be a major undertaking.