The Jackson and Sharp coaches are a close match for the OR&L Carter Coaches and yard built coaches. There are a few differences though. OR&L coaches were 42 ft. The trucks had dual load springs on either side of the leaf springs. The OR&L coach windows were wider with the front and back windows were 23 inches from the ends. The handrails on the tail had ears at the bottoms and there were 12 wider windows in the clerestory.
I like the seats on those AMS coaches too. She’d fit nicely in there since she was made for a 3/4" high seat.
Forgot to mention the OR&L had windows on the ends in the doors and on either side of the doors.