I thought up some rough concept as the day went on. I'd like some opinions.
The ships themselves will have 2 types, custom, and premade. Premade ships will be made by NPC corporations, and will not be very customizable, but reasonably priced. You may only change out SubSystem Modules, System Modules, hull composition, and weapons. There should be at least 10 in game. Custom ships will be built mostly by scratch, started with a basic cockpit module, and can be built with a few structural parts, such as girders, armor paneling, interior paneling, modules, and subsystem and weapon hardpoints. You can mine out asteroids and planets to gather resources to refine into parts and modules at abandoned stations, which you may set up a base as you survive in Trillek.
These will include the DCPU-16, life support, refineries, cargo bays, weapons, and drives, which will be essential for building and customizing your ship. Life support modules are some of the largest modules, usually containing a small med bay, and a bed. refineries can reprocess minerals into parts. Cargo bays can hold extra ammunition and parts, food, and land vehicles.