Ive just had a look back on 2010 for you where I remembered there are some logging wagons
Dont know the kuids, but have a look through Railyard, about halfway through for 'Log wagon' and 'Log 50ft Clinch. empty'. Also near the end there are a couple of logging dollies. They are identifed as '36 ga Skeleton' 22 ft and 36ft. I assume all are standard guage. Cheers