Apply an "Edit Spline" modifier to NGon02 and enter into "Segment" sub-object mode. Click and drag or CTRL+Click to select the 3 most bottom segments. Delete them by simply pressing DELETE key.
Now go to "Vertex" sub-object mode and then select 2 opposite center vertices. Activate the Scale tool and Click "Use Selection Center" button in the main toolbar.
Then on the X-axis drag inward to scale down the distance between these 2 vertices.
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