For those wanting a matching dummy A-unit, here it is: https://www.lionel.com/product...el-a-unit160-6-28905
Here is B-unit: https://www.lionel.com/product...l-b-unit-160-6-38204
These are from 2010 and you can find them with a little persistence and patience. There are also other ones from earlier years (search “FT non-powered” on the Lionel site and view the archives tab). All are identical to the current Lionchief releases.