M84 Wiring loom

Hi,
I am the member of NUST Formula Student team Pakistan. We are planning to use Motec M84 ECU on Cbr600rr for the first time. Is it practical and easy to make our own harness or it is advised to use the wiring loom provided by the Motec?
I am the member of NUST Formula Student team Pakistan. We are planning to use Motec M84 ECU on Cbr600rr for the first time. Is it practical and easy to make our own harness or it is advised to use the wiring loom provided by the Motec?