The M5 Caboose was used by ACL, SCL, Family Lines, and Seaboard System between 1964 into the 1990s. There were 438 total M5's built. Requires: trucks, couplers, etched roof walk, paint, decals, and wire for grab irons (a small jig is included for bending grab irons). For more info, including printable decals, go to:
https://bonevalleymodeler.blogspot.com/2018/06/m-5-caboose-n-scale-now-available.html