I wouldn't mind seeing xwing prototypes in the prequels. They could show several millenium falcons only slightly different because han modified his. The ships are like cars they sell more than one of each model. So there should at least be hundreds in the galaxy. If someone could make a millenium falcon that doesnt look like a piece of junk then it would make logical sense. Han was basically flying a muscle car that had been fixed up enough to drive. It would have been clean and shiney in the PT era.