Yup, that is a really cool example of that idea. I’m not familiar with 3D animation myself much to achieve that idea.
Plus, I realized that she has her new lightsaber on her belt for the entire Tatooine scene, so you couldn’t have her build it from scratch unless you erased it from her belt.
Or, we could just see her put the crystal in, and the lightsaber is already assembled for the most part.
It’s a pipe dream idea but I think it would be cool to see.