The ship in the upper left is Gaia's getaway yacht. The disc on the bottom is the detachable escape spore. The ridges on the engine mounts are fixed joints - they allow for easy jettison of the volatile slip foil drives.
In the lower left is the Snowboys' purchase, an armed and armored freighter fit for high-risk privateering.
To the right is a more typical freighter with a very short train of cargo. I ran out of space on the paper, but a more typical load would be 50 or more units.