Recreating the same data structure as the unofficial Nordpool integration

Hi everyone,
I’m considering switching to the official Nordpool integration, but I currently have quite a bit of logic built around the data structure from the unofficial (custom component) version.

Before migrating, I’d like to recreate the exact same data structure as the unofficial integration — so that all my existing automations, templates, and sensors keep working without changes.

The problem is that I can’t test both integrations in parallel, so I can’t directly compare or build the structure side by side.

Has anyone already done this or found a good way to mirror the old data structure using the official integration?

Thanks in advance!