In the last four years I have made major changes for my own feeder cattle. I started with a dirt lot, wooden bunks and 5 gallon buckets. One muddy winter of carrying 15 buckets a day and my knees said NO WAY. 2nd winter I rented a concrete yard, still wood bunks, and buckets. 3rd yr, concrete bunks and Schuler wagon. Present time , I have an Auggie TMR wagon, measure buckets into the loader bucket, dump that into the TMR with corn silage and away I go.
A feed lot I consult for fed 1000's of cattle over the years with an auger wagon and wooden self feeders.