AH-64 Apache (500) Conversion

Do you think on an Apache 500 size, I can get away with running a Flywing 60 amp ESC with gps? It says for "requirements" that it needs to be an 80 amp ESC. And an 850-1200 KV brushless motor.

A few photos of my helis at today's Golden Triangle RC Heli Fly-In. Had a great day of flying with multiple flights on all aircraft.

A few shots of my 500 size Apache in the air this weekend

My Roban 500 size Apache in flight