Great machine! Im still not sure if Wilton actually made these (and the sanding stations) but they almost look like Powermatic or Delta rebrands. Regardless, all seem to be high quality.
Take a RO sander with 180 grit and clean up the surface rust if you care. Oil or paste wax the top, maybe the column as well. Oil or grease the spindle if it looks dry. Check for runout on the spindle if you get any noticeable vibrations, replace that missing handle with a long bolt and custom handle, add a light, and be stoked on a nice 17 or 20?" machine.