Harv i made this cool building mover that can move buildings without flying https://www.dropbox.com/s/vpgl9nuo29kpgiv/the%20sub%20By%20MCG%20tech.craft
you should do a challenge where you have to build a ship that can hold 6 drones and 1 robot to retrieve fuel and land 1 drone on a far off planet it has to hold at least 6 crew members here a video of a ship that is similar: