I think you’ll get a different opinion from everyone on this. Do you have multiple monitors by any chance?

I would likely have the old site opened on one screen and the new responsive blank theme on the other. This way you can just work on a page to page basis and copy and paste across. This could work nicely if the new theme has some kind of dummy content import and you can just override the preset areas with what you think is best.

The only other thing I could think you could do is export/import the data with a plugin which supports meta fields but that would require a relationship between old and new likely.

Each theme is gonna work differently, so I’d just stick to one and work through the manual slog.

Many thanks

Thanks much for the response. That’s about what I expected, but glad to get some confirmation, and the suggestion of the page by page construction.

Interesting to confirm as well, as I suspected, there is no “automatic” translation from one theme to another, unless there is some prepared meta data.

thanks again,
Rick