This is not too important, but you need a heads-up.
For Exploration content, such as the Delta Voltanis cluster, you need more variety of NPC ships inside the missions.
Perhaps it is time to develop a random-ship generator along the same lines as your Random Character Generator for aliens?
Yes, I know I can give a reason why everyone has the same ship, but I would like to see more variety along the same lines as your "Make-an-Alien" thingie in the character creator. Heck, you can start with FIVE different ships that are only used for Exploration missions until you have the random ship creator up and running.
Conversely, you can just keep making/modelling alot more ships and possibly use the pieces elsewhere.