What would be atleast 20 times cooler then building a ship on Kerbin? THAT'S RIGHT! BUILDING IT IN ORBIT! There should be certain (EXTREMELY LARGE) parts that can be launched into space, and then, when there is enough electricity, ore and other possible recourses, the parts are capable of creating saved ships, or maybe it even has a special construction meny, simmilar to the VAB or the SPH, but with less features. It would be awesome. Imagine having a giant structure in space, that just prints out an entire space station! Any containers would be empty, however, and have to be fueled in space. And there also would of course not be any astronauts onboard of the ship. A fun thing to add to one of the construction bays description would be "Warranty void if [NAME OF CONSTRUCTION BAY] rebuilds itself and causes robot uprising"