I think it would be kind of neat to see the Kestrel and/or Anki have their model's cargo pods replaced with a single mountable Cargo Pod that the civilian trains use. Y'know, to make 'em stand out a bit and add a bit of extra flair on behalf of the pilot!
Of course, then they might have to be balanced around the fact that sometimes, they may have a hole in their hit box, so I suppose that's a bit of a head ache...