Updating same content in different files?

Hi!

We want to share the WIP with the client, but we don’t like to share the production file where we have all versions and thousands of pages. We want to share a live WIP in a different/clean file (with just one page).
The thing is, we can’t convert our frames/ads into components in order to keep the client-friendly file updated.
Is there a way to keep both files linked without using components? I know that’s the right way, but we need to save time instead of using copy+paste.

Thank you so much for your time!