You can run your whole campaign without a base if you like. In fact go right ahead.Aww you spoiled the fantasy, - he was really getting into it.....
So: ship 'emif you've gottem, and of course finish your base before you arrive.
But the point is no-one's shipping 'em as you put it. And no base building is going ahead for quite some time to come.
However you choose to look at it the runway to the Christmas Race is still squeezing...