We are still on the small side for a deer operation so i bought a cement mixer and use it to mix up feed. Down side is i can only mix 100 Lbs. at a time and it takes a while. I know our local feed mill will mix up the feed for me for around $18.00 as long as we buy everything from them. Sometimes when i buy corn i will get 50 to 100 lbs. more than i orderd. so i can't trust that they mix it exactly how i want it. They cant just shut off the flow of the grain exactly when it hits a certain weight. So you will always get more or less than what you want, usally more. I enjoy mixing up feed right now but i am only mixing around 400 lbs. a month and i know a couple guys that run threw a couple tons a month. at that point i wont enjoy it anymore and will buy a Feed mixer. I believe you can pick up a used one for around $3,000.00.