Servos and gimbal control through uarts

Hi all, I’m using an mRobotics control zero F7 FC on ardupilot to build an octocopter, which will use all of its 8 pwm outputs. I still need to control 3 servos (2 for landing gear and 1 for payload) and a tarot brushless gimbal. I still have 4 open UARTs, can those be used for the servos and gimbal somehow? RC input is through SBUS with the herelink system. Thanks!