There's a link off of Peter's Traveller Page to his Space 1889 page where he's posted a Space 1889/Sky Galleons of Mars Consolidated Gun List and a Civil War Variant for Ironclads and Ether Flyers.
Take a look! http://www.sff.net/people/kitsune/traveller/peter/
Take a look! http://www.sff.net/people/kitsune/traveller/peter/