Some progress has been made on the ACL P series flatcars as modeled with the Tichy 4040 kit. The Tichy ACL P series flatcars were some of the longest living examples of early freight car production throughout the 20th century with some examples lasting into the 1970s. A full article is planned on the necessary modifications to make the cars more prototypical and also allowing for unique Maintenance of Way conversion cars.
By the 1960s modeled, most examples will be lettered in the 65XXX and 68XXX series of cars to account for their non-revenue assignments. Many of the cars served the signal, bridge, and wrecking crews throughout the SCL system. Additional 41'4" models to account for roster acquisitions from the AB&C are also planned, along with SAL F-4 and F-5 41' flatcars also placed in Maintenance of Way service.
The above photo demonstrates the differences between the Tichy 4021 and 4040 kits, both of which are universally appropriate for ACL based cars.