The models look perfect as they are. They look as good today as they did back then. Something that can;t be said for the CG models in the prequels.
There are plenty of ships in the PT that were real physical models, you know.
https://geektyrant.com/news/photos-of-the-practical-effects-used-in-star-wars-prequel-trilogy
In fact, the PT had more sets and models than the entire OT. But they still had to use CGI because some things were impossible to make without it. And that’s not a bad thing.