Making Shapes and 3D Contours

The profile was drawn as a reference and because it was there, and I was considering closing it, exporting to SVG, importing it, and then extruding it using a 3rd party program as was done for:

I also was considering cutting it with a series of blended geometries as was done for:

or

but it seemed workable enough to do in CC Pro, and my understanding was that that was okay.