1985? Case 880 What's it worth?

A friend in his mid eighties has died. A small scale excavation contractor, he never used the word retire. He just gradually did fewer, and smaller jobs each year. His equipment one by one went north to be added to his family's fleet. By the end he was down to one excavator. He started all his equipment once a month until the last year or so, and greased them a couple times a year. I'm thinking of it. What might a machine like this be worth?

I'm sure it'll need an intensive overhaul. All the neglected maintenance, I'm sure it'll need a lot. It hasn't been worked in years, but has been exercised until maybe two years ago.

Willie

1985? Case 880 What's it worth?