The ARMN 110000 series cars are new cars built by Trinity Rail Group.
The ARMN 901000, 911000, 912000, 932000, 933000, and 992000 series cars are cars built in the early to mid 1970s (and possibly late 1960s) by Fruit Growers Express
The ARMN 725000 (R-70-20, R-70-22, R-70-24), 758000 (R-70-24), 768000 (R-70-18, R-70-19, R-70-20) (some), and 769000 (R-70-20) cars are former SPFE cars built by PCF in the late 1960s to early 1970s.
The ARMN 761000 (R-70-15, R-70-16?, R-70-21, R-70-23) (some), 762000 (R-70-25, R-70-16), 764000 (R-70-15, R-70-16), 765000 (R-70-20), 766000 (R-70-16), 767000 (R-70-16, R-70-17, R-70-18), and 768000 (some) cars are former UPFE series cars built by PCF in the mid 1960s to early 1970s.
Some of ARMN 761000 (R-70-27, R-70-28, R-70-29, R-70-30) series cars are former BAR cars built by PCF in the mid 1960s to early 1970s.
Some of the UPFE 468000 series (R-70-26) cars (which may become part of the ARMN 768000 series) are former MP (ARMN) cars built by PCF in the late 1960s.
The rebuilt ARMN cars have the roof over the engine compartment removed and the grills and doors covering part of the engine compartment removed.
The above number series and classes are from memory, so there may be some errors.
Athearn makes a pretty good representation of the UPFE R-70-20s (and SPFE R-70-20s if a Hydra-Cushion cylinder is added). Con-Cor makes a pretty good representation of the SPFE R-70-16s. It would be nice to have kits with 9’ plug doors with horizontal latch bars (R-70-17 through R-70-19) and cars with the correct roofs for the last order of R-70-20s and for all of the R-70-21s through R-70-25s. Of course seperate grab irons would also be nice.