What we need is technology, not just if we are going to protect earth, we need it to travel back and forth to each platform we set up. So this picture is just an idea taken from a game called Star Citizen, that game has plenty of ships, messured in real messuring system. But to get there, we need cooperations with industries, governments and what not, but that will be easy, since they like the idea!

Link to it is here : https://robertsspaceindustries.com/pledge/ships/890-jump/890-Jump