Merging bill of materials (power query?)

Hello everyone,

I have been trying to create a program in PowerQuery where i can merge 2 bill of materials based on the equal sub assy descriptions. I have came a long way but could not be able to merge these when the level depthness is more than 1.

I have inserted an example in the appendix of 2 seperate bill of materials and the desired merged bill of material.

Some rules are:

- Bill of material 1 is the main structure, where the bill of material 2 subassy's should be added when there is a match in description (yellow and orange colours).
- The leveling needs to be correct. Should probably at some point be recalculated.
- The green subassy does not have a match so should remain the same.
- The prefered tool to solve this is PowerQuery, however feel free to advice something else

Is this even possible?

Thanks in advance!