https://www.imcdb.org/vehicle_1861656.html
https://www.imcdb.org/vehicle_1861838.html
https://www.imcdb.org/vehicle_1861622.html
https://www.imcdb.org/vehicle_1861605.html
https://www.imcdb.org/vehicle_1861604.html

ID but NOT manned as often with pile drivers
https://www.imcdb.org/vehicle_1860367.html

IMO don't think a Nippon anymore BUT also not manned either after seeing the footage !
https://www.imcdb.org/vehicle_512675-Nippon-Sharyo.html