Sigma Three Roll Mill

For sale here is a Sigma Engineer 4x12 three roll mill. Very good machine (http://www.sigmaus.com/3_roll_mill/index.html). It was bought by a facility for a project that never got off the ground. I was told that this machine was never used. But the rollers have some rust. The rust can be cleaned off easily. The new ones costs about $20k. Seller is motivated to sell!