There are literally dozens of ships that fit your description. In fact several sub-classes.
The salvager frigate is arguably a special ship and certainly one of a kind. The Raba is a signature Hog ship with borrowed heavy transport stats. By copying these stat balances and applying them to new models for lots of other factions you are taking away that uniqueness; not just of the ships, but of their respective factions.
There has to be limits, otherwise there’s little incentive to try out one ship or another aside from the aesthetic.