Reversing dc motor? Help!

I am going to be using a 72v 200 amp brush motor(EMC-RT200) , with a spm-7240 in my boat. Haven’t found a throttle yet.
My problem now is that I am not sure how to wire in reverse.
Do I need a reversing contactor? If so, how do I wire it in.
It would be great if there is a throttle out there that would have built in reverse so that the throttle in the boat operates like normal(forwards - neutral/off - reverse)