Costing is much more nuanced than I thought; nesting performance, systematizing bend radii
https://www.scribd.com/document/1041186672/Leader-Boxes-Built-to-Last-The-Architect-s-Copper-Requirement-135654
Setting you back is a lot more nuanced than I assumed; nesting performance, systematizing bend distances, and batching finishes can open significant savings without compromising layout intent.