I have a lot of experience with pug mills. I have a BAILEY MXP-70T. It sat for 5 years bagged up from the last teacher who never used it. It is a dual auger. I come on board and It worked for a while then the motor kept getting locked up and something broke in the motor area. Amazing mixes, but took forever, small hopper, and had to be hooked up outside my classroom to a single phase, 240v plug outdoors. Now out of warranty. I may sell it to someone who wants to embark on a Pandora's Box to repair it.
I just bought a SHIMPO NVS-07. I bought it for the HUGE hopper door (10" x 13"