Re: looking for a small passenger car

If he wanted to build a copy (replica) of a real car, I would suggest the Morenci Southern little coach-parlor car #102. This car (I'm looking at a copy of the Pullman floor plan) was 30'-1" over the body, 36'-6" over platforms, and 37'-6-1/4" over coupler ends. It had a toilet and a baker heater in the center of the car, a parlor section with 8 wicker chairs, a recessed observation platform with large windows, and four pairs of walk-over seats and two fixed seats in the coach section.
Builder's photos were reproduced in David Myrick's book on the Clifton-Morenci roads (RRs of Arizona Vol 3). Negatives of three interior views negatives are in the collection of California State RR Museum. Illinois Ry Museum has some Pullman drawings.
Brian Norden