Flip-Pins Library for Kicad
The Kicad library for Flip-Pins contains 3 schematic symbols for the 3 sizes (8, 14, and 20 pins) with 3D models that are only the pins. With these, you can visualize what your board will look like when you are finished.
The library also contains 3 schematic symbols that have 3D models that include the plastic aligner. With these, you can check for clearances around the aligner.
Kicad symbols and footprints by Anool of @WyoLum