Solids from point cloud

Best approach for Dynamo, anything is possible but even if it turns out to be impossible, it is only for now.

It should be a matter of using your center of gravity for each item to filter the surrounding points by a “distance to” then sorting the points rationally to create the shapes intended. You could use them to find a min / max to create a bounding box (depending on the shape) that you could then change to a solid.

Have you had a look at this post?