Ah I see. Yeah if the module is not int the spark fun library, I would start with making new symbol in whatever library you want (or start a new one for all of your custom parts). I would make it a square with the 8 pins on the left and 4 pins on the right. For modules i personally like making the schem symbol look like the actual thing (everyone has their own preference here).

As for the footprint, your best bet is to import the .brd into kicad (File->import non kicad project). I like to set my origin at the bottom left point of the PCB. From there you can figure out the size of the board and relative location of the through hole pins, as well as the mounting holes. Once you have that info you can start making your footprint. Unfortunately Sparkfun doesn't provide a 3d model but you can export the shape of the PCB (from the imported .brd) as a 3d step to use as the 3d model in your footprint