Creating a 3D boundary...What's the best way to create a 3D boundary from a shapefile?

[MichaelWalton]

NOTE: I don't have the feature to line or polygon to line tool licensed for ArcGIS analysis.

So, I have a polygon shapefile in CityEngine and I want it to be a thin 3D outline with no color infill. I tried doing it in ArcGIS Pro by setting the symbology properties and extruding. I do not like the way it looks see image...

Also I don't want it in Pro anyway...I'd like to write a CE rule that turns this boundary shapefile into a 3D tube. Any ideas for how I can write this rule?

[MichaelWalton]

It's crashes every time I attempt to fix the rule. I am attaching the GIS shapefile and when you have more free time please check out the boundary rule on this shape.