I have used custom troffs (wireways) when needed, fabed by a shop that also made switchgear and panelboards. Excellent end results, based on field dimensions. He was very cooperative and performed all field measurements. UL labeling was not an issue, all equipment was labeled.
The sticky side was...$$$$. Not a source if you had budget constraints.
Mike (Trumpy) did you do the fab yourself? Or do you have a welder and bender on staff?
