RCM Losi 8 buggy mount w/ mechanical brakes?

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Hello Mike? In your detail on your electric mount for the losi 8ight buggy you state

Requires modification of the stock radio tray. Now allows use of mechanical brakes if desired - must use front brake cam/actuator to actuate above spur gear. Servo for mechanical rear brake must be planned and gearing will have limitations when using mechanical brakes.

Are there directions for this? Any photos? I would love to setup my buggy w/ the mechanical brakes.

Thanks!