I'm not meaning this in any fluff way at all, I'm just saying this as aconceptfor a Rogue Trader army.
Using the Ordos codicies, you can create a rogue trader army, as follows: (Obviously the Xenos Hunters would be the best codex to use since Traders will have access to alien technoloogy)
Inquisitors: They become the Rogue Traders themselves, with the henchmen being their bodyguard/advisors etc.
Stormtroopers: They are the personal warriors of the Traders.
Orbital strike: The same but from the Traders ship.
Landraider: Rogue Trader heavy tank, with treansport capacity. (Obviously a very rich trader)
Dreadnaught: A robot used by the traders, being set up for whatever they need.
Grey Knights/Adeptus Soritas/Deathwatch: These can either be the ultimate troopers of the Trader, or a group of the aformentioned working along side the Trader in their mission.
Termies/GK Commander: I'm not sure about this. Would leave it out myself.
What do you lot think? I reckon some of you will already have come up with this idea, but it would certainly change the apperance of the Ordos armies.