I see in the archives where folks attach the starter to the right post (See picture below) and the shunt/master solenoid connection to the left post. but would it matter if I conected the starter to the left post and the shunt/master solenoid connection to the right post?
On the starter contactor you can supply power to either side because the coil is energized by supplying power (it's internally grounded). The master contactors work just the opposite - the coil is connected to the battery side internally and you turn it on by supplying ground to the other side of the coil.