If your going to buy used barrels make sure they are food barrels and not industrial. I have 2 feeders up, I just purchased the barrels, the timers and then cut some pipe and made brackets to attach the pipe to the barrels. If I back up to the barrels in my truck I can fill them with corn standing on the side of my truck bed. I agree with the previous post, good idea to get some adjustable funnels.