I have several questions relating to the Dash pin functions and hardware. Below is a bullet list of the information I am looking for
For 1) the distance between pins across the board (between “L” row and “R” row.) is approximately17.63 mm. It fits on a standard breadboard with the L pins on the A column and the R pins crossing the gap and going in the F column.
Also for your answer to the SPI question, you can select which SPI port in the Arduino IDE. You can only use one at a time. The selection is under the tools menu: