Rearranging sliced curves from meshes for laser-cutting

Hi!

Im finally out of ideas and cant find anymore help in existing discussions in this awesome forum. Im kinda on beginner level grasshopper skill, i guess.

I'm currently trying to automate the process of splitting a Mesh (multiple simple Meshes, like a basic site-model) into a lasercut-able section parts.

With help of this forum i already managed to slice through the model, rearrange every slice onto a xy-plane rectangular grid and to number every part consecutively.

As for now, im pretty happy with the solution i came up with, yet i cant find a way to get rid of the rectangular grid (grid size by "largest part") and rearrange the parts within a rectangle (my future lasercutmaterial/cardboard) with the "least" amount of clippings/waste.

I thought about using a pointcloud and boudingboxes, but this solution, i guess, will never "sort" the same pieces together.

The other idea i had was creating seperated points/rectangular grid for every branch i have, but i srsly dont know how to automate this for every branch i have in my section tree (i still dont completley understand how trees/branches work tbh.).

can u guys help me or point me in a direction i shall continue to explore?

Thank you so much in advance!