IS there any information on how to contact the owner about purchasing equipment?

Last I knew, the only way to contact Mr. Dillman was to call Prairie Sand & Gravel in Prairie Du Chien at (608) 326-6471, leave a message with the folks there, and hope he'll call you back.

Equipment still there as of November 2nd, 2021.

One thing that really sticks out as odd is that the rail on one end of the balloon is so light
and has such wide tie spacing, that I doubt that it'd even support a light Shay locomotive.
This makes one wonder just when the last movement was over this part of the balloon.

This is also a turntable sitting in the weeds. It looks to be of medium or better length.