Hmm, i didn't add a 1 block ship for building purposes, I've been planning to but i didn't have time. It'll be in future patches. As for the building system, that will be a option in the later game, but it will be different: it'll be
split it into hull editing(only in spacedocks/room design ) and
interior building(component based). I also plan on putting the ships player designs in creative be able to be bought in space-stations in sandbox.
In the current version there are already spacestations with aliens that give you missions.(there's one in each gametype) In the future versions yes i will make space-docks that give you the option to upgrade systems/make ship bigger, but for now there's only one type of spacestation. if you can't find it, use the chat command to spawn it(press enter, type "/spawnship spacestation"). Also if you can't drive the ship, maximise the engine console scrolls and change the power output of the reactor to full power, ship mobility&speed is proportional to these. I already made a currency in the game that will be used to buy stuff.