There is an estate sale with a large collection of Lionel track, transformers, cars, engines and most contain original boxes.  The auction house is grouping them in lots, so some good deals might be had.  Attachment is PDF of manifest if anyone is interested.

https://lasvegasauction.hibid.com/catalog/524618/sun--10am---silverado-ranch-estate-online-auction-3-17?q=train