The wiring of the Porter could not be simpler - a battery (12v to 36v), a motor and a 5K speed pot. A 10K pot can be used as instructed in the manual. See Index: manuals and publications
Wiring for the board version is shown: the boxed version includes wires.
4QD can supply the motor and battery connection 'tails' pre-crimped with 6.3mm push-on connectors to suit the circuit board.