Nice results Paquicinno & ED! I'm doing a similar workflow, still using Illustrator CS6 and Astute WidthScribe. I use multiple duplicates of MoI's Shaded Background and play with different line styles and built in PS effects.
@Michael, in some future time, it would be nice to have a few transformable light sources and shadows (self shadowing Geo would be excellent). Not necessarily for realtime display but for Shaded Background output.
Model Credits: from Grabcad by John Fall

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