That does depend on your definition of "honest trading," how you intend to acquire your "trade goods" and being able to defend said goods. :)
Before the recent changes, so the Hull-C works, the cargo ships that were most efficeint to load were in the 60 to 120 CF range. Now, I haven't done any hauling recently, so I don't know the extent of changes. But that was the best sizes to land at an outpost, load up and take to a TDD, without having to make multiple stops for the best margins.
I suppose the Corsair is also listed as Exploration, and the MSR is also listed as data running, but they still appear to be, at their heart, trash haulers. :)
And, yes, they are all good at supporting mining operations, by delivering ground vehicles, and hauling away ore, since there is some mining equipment as well. The Corsair, and Odyssey should be capable of finding good places to turn big rocks into little rocks as well.
But the inclusion of those four ships caught my attention and interest. So I wasn't criticizing, I was curious as to the intent.
For all I know, it could just be that
@Zookajoe just likes the aesthetics.