Thunder Drones might have something for you.
His username is @Thunder-drones
His site is Thunder-drones - Powered by Network Solutions.
Not currently on my website but PM me if you need one.
By the way I didn't notice you wanted a cutout. @BD0G offers non-clear gimbal covers with a cutout. They make an effective sun shield to prevent shadow effects from cropping up. PM him if you're interested.Where can I buy the clear plastic gimbal cover with a cutout for the camera?