Re the discusion on whether 40K rogue trader ships are big or small in canonical books, I remember a 40k book by Barrington Bailey whose title evades me (it might be Eye of Terror) where one of the main characters was a rogue trader. His ship was small enough to land on a planet and had precisely 2 crew members: the RT and his navigator.It had a warp engine and Gellar fields. In fact one of the plot points was that he was stuck in one system looking for a new navigator because his last one went nuts from being too close to the eye of terror. The rest of the novel was good on canonical data (Dark angels hunt the fallen, Lion'El Jonson is in supended animation in a secret chamber in the Rock, Daemonettes are weird looking but sexy, the Emperor is one powerful Pysker, Don't muck about with Chaos artifacts if you want to live in the Imperium, Callidus assassins are deadly but sexy). You would think that a small ship would be better in some cases, as the less souls on board the less notice you would get from the Warp gribbleys. They would be more attracted to giant cities in space like Imperial Battleships.

So I dont see any reason why you couldn't have a Han Solo type in a rust bucket, Han Solo putting the Rogue in Trader more than Captain Kirk of the Mars Class Battlecruiser Enterprise. ( The empire wouldn't like Kirk, his first officer is obviously Eldar).

Without going to far off topic, I'd to throw in my couple of thrones and recommend a beautiful size comparison of oh, so many ships of the genre we keep coming back too.

I would hope more like Mirror Universe Kirk than Kirk.................(which I enjoy more than normal trek, some of the few decent eps in Enterprise)

In an ideal world it should cover smaller covert spies - sorry I meant  small trading operations, large ships and huge flotillas of ships................

but if we can't do both - prefer to have the large scale, fleet management stuff rather than small scale things..............

take a tanker. I can have very few crew and still be large and be feasible from the economical side.