@ozexpat and @perchie.girl I got this idea about the feed mixer, utilizing the leaf blower idea. You could make the big funnel container like in the video deb showed (sized for your demands), and have the pipe feed back into it. After a few minutes of mixing, you could just direct the pipe into whatever you store the feed in, and fill it. No tilt or gears needed, and less risk of fingers getting caught in moving parts.