The donated spindle and disk sanders need new motor starter/overload assemblies and power cords so they can be plugged in and cleaned/tested/maintained.
2x Motor starter/overloads - $103 each
2x NEMA L16-20 Plugs - $27 each
25ft SOOW 600V flexible portable $79
Those total $338, the remainder will be for small parts like cord grips, fasteners, and oil/grease/gaskets as needed.
Even if we decide not to keep these machines, this is worthwhile so they are able to be hooked up and run, making them easier to sell. The machines are easily worth $1200 minimum each.