Guess I should have used an actual mic, and placed it closer to my mouth than to the keyboard. Sry.
Image Trace (with Ignore White checked in the advanced settings dropdown) and clicking Expand gives me the art I want to engrave and duplicating that layer gives me a second version to make into the outline/cut-line. (Turning off one layer helps to avoid confusion. label the layers if you are going to be working on more complex stuff, or collaborating with other folks).
Object > Compound Path > Release Path breaks the compound shape (fills in the holes)
Pathfinder > Unite turns all of that mess into a single (filled) shape
Click the Swap Fill and Stroke Color button to have a stroked shape instead of a filled shape.
(not necessary, but recommended ((by me)) to avoid confusion later on in the GFUI)
Change the color of the stroke to something other than the color of the engrave. I use red.
Save As SVG or PDF and throw it at the GF.
If you have one object with a black fill and one object with a red stroke, as I do in this example, the GFUI will make the filled shape an engrave, the stroke a cut; the black colored object will be the first step and the red object will be the second step.