I look forward to seeing if large ships are doable. In most games the larger a ship is, the heavier it is, thus the more power you need for the engines. But the power generators you build add to the mass. It is the issue we have now with liquid fuel rockets. Diminishing returns and the like. Although it might fit into the jump gate idea. If we need to build jump gates to get to other systems perhaps an organization can build a giant ship to house the people and resources needed to build one, then jump to the new system and build another. perhaps there will be a very expensive, very advanced anti gravity block that reduces a ship's mass so a larger build can move at a viable speed.