Decomposition tree

I am trying to create a visual in Power BI Desktop that illustrates the connection between products that are decomposed and aggregated. The data in a simplified version looks like this:

And the basic concept of the visual is this:

I have tried to work with the Decomposition tree but I am not succeeding in creating anything near what I wish to portray.

How do I create this visual in Power BI Desktop?

Any hints and/or pointers are most welcome 🙂

//chasman