I have a hard time building a Millenium Falcon model kit. I wouldn't even know where to start building the real life thing. Seeing it a quarter of the way built like this makes it pretty apparent how much detail went into building it. Not only did it need to look cool, it needed to be able to support the weight of the actors, have hatches open up, and fit cameras/lights inside. That takes a certain level of genius to plan and accomplish.
In the new Solo movie, the Millenium Falcon has an added piece on the front which is an escape hatch. Han ends up blasting it off the ship and never replaces it, explaining the empty spot in the front when we see it in A New Hope. Who knows what kind of trouble they could have gotten out of if he just would have replaced that hatch.